WEBVTT - Devourer of Memories, Part 1

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<v Speaker 1>Welcome to Stuff to Blow Your Mind, a production of

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<v Speaker 1>I Heart Radios has Stuff Works. Hey, welcome to Stuff

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<v Speaker 1>to Blow Your Mind. My name is Robert Lamb and

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<v Speaker 1>I'm Joe McCormick. And today we're going to be embarking

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<v Speaker 1>on a two part episode about the nature and physical

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<v Speaker 1>basis of memory. So in the past we've explored the

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<v Speaker 1>question where is my mind? We did an episode about this,

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<v Speaker 1>I think a couple of years ago. Like, it seems

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<v Speaker 1>obvious enough that cognition takes place in the brain, but

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<v Speaker 1>this hasn't always been taken for granted. And today we're

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<v Speaker 1>gonna look at a very strange narrative of twenty and

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<v Speaker 1>some twenty one century research that asks a similar question

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<v Speaker 1>about memories. What are memories made of? Like, if you

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<v Speaker 1>have a memory of I don't know, You're going down

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<v Speaker 1>the street and seeing Hulk Hogan stomping on an ice

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<v Speaker 1>cream sandwich, is that stored exclusively within the brand sane?

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<v Speaker 1>If so, how is it stored in the brain? And

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<v Speaker 1>more importantly, for today's episode, can I eat your body

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<v Speaker 1>and gain that memory for myself? Yeah? This is you know,

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<v Speaker 1>this is actually a really tremendous question though of course

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<v Speaker 1>it does touch on a number of mythical and fictional

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<v Speaker 1>notions that we've touched on before over the years, such

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<v Speaker 1>as can a google eat your brains and become you

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<v Speaker 1>for a limited amount of time? Or cannon immortal swordsman

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<v Speaker 1>cut off another immortal's head and gain their vital power. Uh,

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<v Speaker 1>do you know the living dead really eat brains because

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<v Speaker 1>it makes the pain of being dead go away? Is

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<v Speaker 1>there anything to indo cannibalistic funeral rites you know, practiced

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<v Speaker 1>by various cultures throughout history since ancient times? Or how

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<v Speaker 1>about this, If Michael Caine loses a hand and receives

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<v Speaker 1>a hand transplant from a murderer, does he become more

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<v Speaker 1>likely to he himself murder? I assume that must be

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<v Speaker 1>based on a real movie. But what Oliver Oliver Stone

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<v Speaker 1>directed it? As a matter of fact, what's it called.

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<v Speaker 1>I think it's called The Hand. But Michael Caine's ended up.

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<v Speaker 1>He plays like a comic book artist. I think so that,

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<v Speaker 1>you know, that's the other side of it is used. Um,

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<v Speaker 1>you know, it's it's early Stone. It's not political. It's

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<v Speaker 1>all about you know, people's hands coming off and being

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<v Speaker 1>replaced by hand that then has the will of a

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<v Speaker 1>killer within it, which I think has been explored in

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<v Speaker 1>other horror properties as well. Um, it sounds like solid

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<v Speaker 1>Michael Caine. Yeah. And it also gets into an idea

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<v Speaker 1>that came up in our recent episode on yoga, the

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<v Speaker 1>idea of of of memories being stored in one's body,

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<v Speaker 1>which of course is a little more complicated. All this

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<v Speaker 1>is all is more complicated when you consider the human situation.

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<v Speaker 1>But a lot of what we're gonna be talking about

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<v Speaker 1>in this episode is not dealing directly with with with

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<v Speaker 1>human cognition and human memories, but what we can observe

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<v Speaker 1>in simpler but also very important and informative organisms. Yes. Uh,

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<v Speaker 1>though that doesn't mean that people haven't tried to extrapolate

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<v Speaker 1>all kinds of things about about human memory from this research,

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<v Speaker 1>and that will be part of the story too. This

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<v Speaker 1>is going to be a mostly historical pair of episodes

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<v Speaker 1>looking at controversial past research and linking it to more

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<v Speaker 1>recent studies. And it's also going to be in two parts.

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<v Speaker 1>As I said, so, I'd say it's it's important not

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<v Speaker 1>to draw your conclusions until you've heard the whole thing.

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<v Speaker 1>A significant part of what we're talking about today is

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<v Speaker 1>going to be research that looked promising at one time

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<v Speaker 1>but as widely regarded as as being on the wrong

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<v Speaker 1>track today. Exactly, but still certainly there's a lot to

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<v Speaker 1>learn by looking at these past cases. Absolutely. Uh So,

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<v Speaker 1>the main human figure we're going to be looking at

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<v Speaker 1>in the story today was an American psychologist named Dr

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<v Speaker 1>James V. McConnell, who lived nineteen twenty five to nineteen

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<v Speaker 1>ninety And I wanted to start off by mentioning several

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<v Speaker 1>sources about McConnell's life and career that will be referring

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<v Speaker 1>to in these episodes. One was an article about McConnell

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<v Speaker 1>by the Michigan State University psychologist Mark Rilling that appeared

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<v Speaker 1>in American Psychology Ist in nineteen called the Mystery of

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<v Speaker 1>the Vanished Citations, uh And that title refers to a

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<v Speaker 1>period where McConnell was doing a lot of very influential research,

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<v Speaker 1>but today you don't see the citations of this research

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<v Speaker 1>mentioned very much, and he's sort of exploring why that is.

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<v Speaker 1>Another article, it was a great article called Memory in

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<v Speaker 1>the Flesh in the Verge by R. L. Do Haim Ross,

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<v Speaker 1>And also a couple of pieces in like two thousand

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<v Speaker 1>ten and two thousand thirteen for the Journal of the

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<v Speaker 1>American Psychological Association by a sociology professor named Larry Stern.

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<v Speaker 1>That Verge article, by the way from and it's quite

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<v Speaker 1>a good read. Yes it is so. James McConnell was

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<v Speaker 1>born in Okamalgy, Oklahoma. I hope I'm saying that right,

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<v Speaker 1>Okmalgy or Okmalgi. Yeah, and that sounds Oklahoma enough, I

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<v Speaker 1>think okay uh in nineteen. He spent almost all of

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<v Speaker 1>his professional career on faculty at the University of Michigan,

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<v Speaker 1>beginning in nineteen fifty six after he got his PhD

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<v Speaker 1>from the University of Texas and lasting in Hill his

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<v Speaker 1>retirement in nineteen eight and from the sixties through the

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<v Speaker 1>eighties he also served as a research psychologist at the

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<v Speaker 1>Mental Health Research Institute of the University. So McConnell overall

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<v Speaker 1>was a very controversial figure in American psychology for multiple

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<v Speaker 1>reasons that we will explore throughout these episodes. Widely known

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<v Speaker 1>as innovative, enthusiastic, humorous, but also perhaps his reckless, sometimes

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<v Speaker 1>un serious, and undisciplined. One interesting fact about him that will,

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<v Speaker 1>I think become more relevant as we go on is

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<v Speaker 1>that early on before his academic career, he did some

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<v Speaker 1>work in radio and television as a DJ and a

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<v Speaker 1>scriptwriter before going into psychology, and of course this would

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<v Speaker 1>prove valuable in a career as a public science communicator

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<v Speaker 1>and something of a celebrity scientist. Now, apart from the

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<v Speaker 1>research that we're going to be looking at today, I

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<v Speaker 1>think McConnell was probably best known for founding a strange

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<v Speaker 1>magazine called The Worm Runners Digest. I think one major

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<v Speaker 1>problem many psychologists had with James McConnell during his life,

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<v Speaker 1>UH was typified by the spirit of this journal, which

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<v Speaker 1>published real reports of real scientific research. In some ways,

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<v Speaker 1>it was kind of a clearing house for reports of

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<v Speaker 1>research that wasn't yet in the It wasn't yet ready

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<v Speaker 1>to be submitted to peer reviewed journals. So kind of

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<v Speaker 1>scientists would submit uh, you know, worm training reports and

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<v Speaker 1>things like that to this as as a preliminary measure.

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<v Speaker 1>But then it would publish that real research UH and

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<v Speaker 1>and real manuals for replication, right alongside bizarre jokes and

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<v Speaker 1>poems and cartoons and hoaxes and satirical articles. So, for

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<v Speaker 1>a few article titles cited by Larry Stern, one is

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<v Speaker 1>the effects of physical torture on the learning and retention

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<v Speaker 1>of nonsense syllables. One is called operant conditioning in the

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<v Speaker 1>domestic darning needle Spina Farrika. So a lot of like

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<v Speaker 1>weird psychology in jokes, sort of jokes about the field

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<v Speaker 1>psychologists trying to write parodies of their own research and

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<v Speaker 1>the and the problems they encountered within their sub fields. Okay, okay,

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<v Speaker 1>there's a very very specific audience in mind them. Yes. Uh.

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<v Speaker 1>Larry Stern also writes that there were spoofs of Freudian theory,

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<v Speaker 1>including quote some comments on the addition to the theory

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<v Speaker 1>of psycho sexual development by Sigmund Fraud, which introduced the

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<v Speaker 1>nasal stage occurring between the anal and phallic stages, in

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<v Speaker 1>which the libido quote is localized primarily in the mucus

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<v Speaker 1>linings of the nose, which I guess is a strange

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<v Speaker 1>reminder that, you know, in the middle of the twentieth century,

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<v Speaker 1>I think a lot of psychology journals would still be

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<v Speaker 1>dealing with a pretty significant contingent of Freudian trained psychoanalysts.

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<v Speaker 1>But and I figured this would be of special interest

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<v Speaker 1>to you. Robert McConnell actually was also a science fiction

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<v Speaker 1>writer and a charter member of the Science Fiction Writers

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<v Speaker 1>of America, which again I would say probably didn't help

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<v Speaker 1>his professional reputation. Yes, perhaps not uh so from what

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<v Speaker 1>I could find. His sci fi stories also often seemed

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<v Speaker 1>to be humorous and aimed at parody of the fields

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<v Speaker 1>that he worked in. For example, Rilling writes about McConnell's

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<v Speaker 1>one of McConnell's stories called Learning Theory, published in nineteen

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<v Speaker 1>sixty five, and in this story quote, McConnell is the

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<v Speaker 1>protagonist who is abducted during the preparation of a lecture

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<v Speaker 1>on learning theory, into an interstellar lab ship to become

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<v Speaker 1>a subject confined to a series of chambers that resembled

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<v Speaker 1>the skinner box, tea maze, and lashly jumping stand. And

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<v Speaker 1>I had to look up that last one. But the

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<v Speaker 1>lastly jumping stand was an apparatus for the study of

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<v Speaker 1>operant conditioning, and it gave a rat an option to

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<v Speaker 1>jump over a gap to two different visual stimuli. One

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<v Speaker 1>would offer a reward and one would cause the rat

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<v Speaker 1>to fall into a net below. Okay, so not just

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<v Speaker 1>another tool that was used in behavioral studies, right, So

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<v Speaker 1>he's in this story he's writing about himself being it

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<v Speaker 1>into the studies that people were doing on rats in

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<v Speaker 1>the fifties, and I guess the sixties too. But picking

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<v Speaker 1>up with Rillings description of the story quote, after first

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<v Speaker 1>behaving according to the predictions of learning theory, McConnell realizes

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<v Speaker 1>that he will be returned to ann Arbor if he

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<v Speaker 1>misbehaves by violating the predictions of his captor's theory of learning.

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<v Speaker 1>McConnell was an iconic last and his story is a

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<v Speaker 1>spoof fun learning theory in nineteen sixty. So I think

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<v Speaker 1>the idea is, uh, he's poking fun at the sort

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<v Speaker 1>of the rain of conventional wisdom by saying that if

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<v Speaker 1>he were a subject in alien psychological research, if he

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<v Speaker 1>didn't confirm their pre existing theories, they basically throw him

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<v Speaker 1>out and say he wasn't a valid research subject. Interesting.

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<v Speaker 1>According to an obituary I found by some University of

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<v Speaker 1>Michigan colleagues, McConnell was also a cultivator of orchids, as

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<v Speaker 1>well as a lover of computers and poker, and known

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<v Speaker 1>by many students for quote personal zest to joy in teaching,

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<v Speaker 1>intellectual animation, infectious enthusiasm, and individualized attention that he brought

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<v Speaker 1>to his classes. Uh and Rilling points out that while

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<v Speaker 1>much of his cannibalistic memory transfer work that we're gonna

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<v Speaker 1>be focusing on was later considered wrong and misguided, McConnell

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<v Speaker 1>was actually a really important pioneer in research into invertebrate

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<v Speaker 1>learning and memory, and that scientists today should be able

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<v Speaker 1>to learn from both his successes and his failures. Now,

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<v Speaker 1>I want to make an admission that I'm afraid I'm

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<v Speaker 1>going to say something wrong in one of these episodes

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<v Speaker 1>because I keep accidentally calling James McConnell Jerry O'Connell, who

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<v Speaker 1>was not a psychologist. He was the guy in Scream Too,

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<v Speaker 1>and he played the football player and Jerry McGuire No, no,

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<v Speaker 1>I actually haven't seen Jerry McGuire um, But you've got

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<v Speaker 1>some VHS t do I have some VHS tapes because

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<v Speaker 1>I'm I'm saving them. I have to contribute them to

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<v Speaker 1>the pyramid that is being built in the desert, because

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<v Speaker 1>we do have to return all the Jerry's home. But yes,

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<v Speaker 1>I have actually have not watched it. Well know, he

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<v Speaker 1>was like a hunky dude in the nice but no

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<v Speaker 1>different guy, not the actor Jerry O'Connell, James McConnell. So

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<v Speaker 1>if I say, Jerry O'Connell, you've got to reach across

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<v Speaker 1>the table and slap me, will will you? Will you

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<v Speaker 1>keep this pledge? Um? I don't know if I feel

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<v Speaker 1>like getting up to slap you, but I will try

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<v Speaker 1>and jump in. Um. So. Dr McConnell explores some pretty

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<v Speaker 1>radical ideas during his career. You know, one of them

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<v Speaker 1>will be the primary focus for these episodes. But he

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<v Speaker 1>also later wrote about the potential of using behavioral modification

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<v Speaker 1>on criminals to enable their re entry into society. Yeah. Um,

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<v Speaker 1>And he thought that this might be used to eliminate

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<v Speaker 1>crime and mental illness altogether. There was a lot of

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<v Speaker 1>enthusiasm in the mid century among the behaviorist school of

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<v Speaker 1>psychology for this kind of like society revolutionizing potential of

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<v Speaker 1>behavior modification. Right, And we have to go back to

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<v Speaker 1>some of these character attributes we've touched on already, that

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<v Speaker 1>he was when he was excited about an idea, he

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<v Speaker 1>was very excited about it and infectious with his excitement.

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<v Speaker 1>And he was something of a public figure and would

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<v Speaker 1>engage is kind of a celebrity scientist. He could engage

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<v Speaker 1>with science on a show biz level, not just on

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<v Speaker 1>a research level, and in fact often maybe did so

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<v Speaker 1>to the detriment of public expectations. He was accused by

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<v Speaker 1>some colleagues of over hyping and over interpreting and over

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<v Speaker 1>speculating from what research existed. So it's thought that this

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<v Speaker 1>is the reason that and it's particularly some of these

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<v Speaker 1>ideas that he was pushing in enthusiasm, he was pushing

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<v Speaker 1>regarding a behavioralism, that this is what attracted the attention

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<v Speaker 1>of a man by the name of Ted Kazinski. Yeah,

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<v Speaker 1>which most people probably recognize that name. If not, you

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<v Speaker 1>might know him by his moniker, the UNI Bomber. We

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<v Speaker 1>were talking about this before we came in that, Like,

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<v Speaker 1>I bet a lot of younger listeners out there don't

0:12:54.160 --> 0:12:56.520
<v Speaker 1>even remember the UNI Bomber. I remember from when I

0:12:56.559 --> 0:12:59.560
<v Speaker 1>was very young. I mean, it's also easy to only remember,

0:13:00.320 --> 0:13:02.200
<v Speaker 1>you know, a few pictures here and there, remember that

0:13:02.280 --> 0:13:05.760
<v Speaker 1>police sketch, and remember like a courtroom picture where you know,

0:13:05.880 --> 0:13:08.559
<v Speaker 1>Kazinski looks, you know, completely unhinged, that sort of thing.

0:13:08.600 --> 0:13:12.160
<v Speaker 1>But yeah, McConnell was one of his targets. Kazinski mailed

0:13:12.240 --> 0:13:15.600
<v Speaker 1>his tenth bomb to Dr McConnell in an assassination attempt,

0:13:15.640 --> 0:13:19.679
<v Speaker 1>and this was in nineteen five. UM he had at

0:13:19.679 --> 0:13:22.800
<v Speaker 1>that time he was working with a graduate student assistant

0:13:23.360 --> 0:13:27.160
<v Speaker 1>uh named I believe what is Nicholas Sueno, and so

0:13:27.200 --> 0:13:31.800
<v Speaker 1>they're working together. They opened the package and triggered the explosion. Now,

0:13:31.840 --> 0:13:35.920
<v Speaker 1>thankfully both individuals survived with only only minor injuries and

0:13:36.040 --> 0:13:39.120
<v Speaker 1>mild hearing loss, as well as what sounds like some

0:13:39.320 --> 0:13:41.880
<v Speaker 1>level of PTSD based on the experience, which I think

0:13:41.920 --> 0:13:45.920
<v Speaker 1>is quite understandable. But but yeah, just a refresher on

0:13:45.960 --> 0:13:49.560
<v Speaker 1>the UNI bomber for anyone who doesn't know or as

0:13:49.600 --> 0:13:54.920
<v Speaker 1>a little foggy uh Ted Kazinski born ninety two was

0:13:54.960 --> 0:13:59.200
<v Speaker 1>a was a former mathematics professor and mathematician who took

0:13:59.240 --> 0:14:03.160
<v Speaker 1>two acts of murder and domestic terrorism to advance his manifesto,

0:14:03.280 --> 0:14:07.440
<v Speaker 1>which was titled Industrial Society and Its Future, in which

0:14:07.480 --> 0:14:12.400
<v Speaker 1>he heavily criticized his post Industrial Revolution society and he

0:14:12.400 --> 0:14:15.920
<v Speaker 1>also criticized what he referred to as leftist psychology. Yeah,

0:14:15.960 --> 0:14:18.560
<v Speaker 1>he's sometimes he can be kind of hard to pin

0:14:18.640 --> 0:14:21.160
<v Speaker 1>down in terms of his ideology because he doesn't fit

0:14:21.240 --> 0:14:24.760
<v Speaker 1>with a lot of the standard ideological kind of groupings

0:14:24.760 --> 0:14:27.800
<v Speaker 1>you see with mass murderers and terrorists that are motivated

0:14:27.800 --> 0:14:30.800
<v Speaker 1>by ideology. He was more of a kind of idiosyncratic

0:14:30.920 --> 0:14:35.040
<v Speaker 1>lone wolf terrorist. But but he's sometimes referred to as

0:14:35.040 --> 0:14:39.440
<v Speaker 1>like an anarchist primitivist. He wanted people to return to

0:14:39.600 --> 0:14:44.160
<v Speaker 1>nature and reject modern technology and science, right, which I

0:14:44.160 --> 0:14:46.440
<v Speaker 1>mean they're they're versions of that that of course, that

0:14:46.520 --> 0:14:50.360
<v Speaker 1>are that many people listening to the show might agree with, uh,

0:14:50.720 --> 0:14:53.320
<v Speaker 1>and they wouldn't resort to murder exactly. And I mean

0:14:53.320 --> 0:14:55.880
<v Speaker 1>that's that's the big thing, just to drive home here,

0:14:56.120 --> 0:15:00.200
<v Speaker 1>you know. He Yeah, he argued for this nature centric anarchism,

0:15:00.240 --> 0:15:04.200
<v Speaker 1>and in his bombings he targeted individuals involved in modern

0:15:04.280 --> 0:15:10.040
<v Speaker 1>type mostly individuals involved in modern technological advances. And that's

0:15:10.040 --> 0:15:13.160
<v Speaker 1>why McConnell's work is sometimes hard to figure out, like

0:15:13.280 --> 0:15:17.520
<v Speaker 1>why this attracted the attention of Kazinski because it doesn't

0:15:17.640 --> 0:15:20.360
<v Speaker 1>quite seem to fit the profile at first glance. Yeah.

0:15:20.360 --> 0:15:24.440
<v Speaker 1>The article I was reading by Mark Rilling identifies McConnell's

0:15:24.600 --> 0:15:29.120
<v Speaker 1>public communication on TV and another media about behavior modification

0:15:29.320 --> 0:15:32.720
<v Speaker 1>at use, uh, you know, in use in criminal justice

0:15:32.840 --> 0:15:37.160
<v Speaker 1>and human behavior reform at the large scale, as the

0:15:37.240 --> 0:15:41.160
<v Speaker 1>likely culprit in attracting Kazinski's hire. Yeah, because Kazinski did

0:15:41.160 --> 0:15:46.000
<v Speaker 1>criticize modification of the human condition, especially behavioral modification, which

0:15:46.080 --> 0:15:49.520
<v Speaker 1>McConnell had become an outspoken proponent of in the media,

0:15:50.000 --> 0:15:54.320
<v Speaker 1>and Kazinski saw him as an advocate of society's attempts

0:15:54.320 --> 0:15:58.360
<v Speaker 1>to change humans to fit the system rather than the reverse. Yeah.

0:15:58.520 --> 0:16:02.320
<v Speaker 1>Between ninety nine teen, Ted Kaznski killed three people and

0:16:02.360 --> 0:16:06.240
<v Speaker 1>injured twenty three. Uh. He was the target of an

0:16:06.240 --> 0:16:10.120
<v Speaker 1>intense um search for his identity, but finally he was

0:16:10.200 --> 0:16:13.720
<v Speaker 1>arrested in nineteen and remains in prison serving a life

0:16:13.800 --> 0:16:17.880
<v Speaker 1>term as of this recording. Yeah. And fortunately both McConnell

0:16:18.000 --> 0:16:21.200
<v Speaker 1>and and the student Sweeno survived the Attechnic and so

0:16:21.560 --> 0:16:25.040
<v Speaker 1>McConnell lived several years after that. He passed away in nineteen.

0:16:25.760 --> 0:16:28.280
<v Speaker 1>So this is just something about just a bizarre um

0:16:28.680 --> 0:16:30.960
<v Speaker 1>you know, aspect of the overall story and just uh,

0:16:31.280 --> 0:16:36.160
<v Speaker 1>certainly a historically noteworthy part of McConnell's biography. Uh, that

0:16:36.280 --> 0:16:40.080
<v Speaker 1>he just ends up, you know, wandering into the path

0:16:40.400 --> 0:16:43.840
<v Speaker 1>of of this individual and becomes part of the Kazynski

0:16:43.960 --> 0:16:46.880
<v Speaker 1>story as well. Yeah, but that's not the main part

0:16:46.880 --> 0:16:49.080
<v Speaker 1>of his life. We're going to be focusing on in

0:16:49.120 --> 0:16:52.240
<v Speaker 1>these episodes. We're gonna be looking more at his research

0:16:52.320 --> 0:16:56.280
<v Speaker 1>on memory, and specifically memory research with a group of

0:16:56.280 --> 0:16:58.880
<v Speaker 1>flat worms known as plenaria. So should we take a

0:16:58.960 --> 0:17:01.840
<v Speaker 1>quick break and then come back to talk about planarians. Yes,

0:17:02.120 --> 0:17:08.320
<v Speaker 1>let's go ahead and cut the episode right here. All right,

0:17:08.359 --> 0:17:11.000
<v Speaker 1>we're back. So before we look at the experiments of

0:17:11.080 --> 0:17:14.040
<v Speaker 1>James McConnell and colleagues, we should meet a major character

0:17:14.600 --> 0:17:17.639
<v Speaker 1>in this scientific narrative, which is a type of flat

0:17:17.680 --> 0:17:23.000
<v Speaker 1>worm called planaria. Right now, for starters, Planaria, there is

0:17:23.240 --> 0:17:27.360
<v Speaker 1>a genus planar area. But but but it's not what

0:17:27.400 --> 0:17:31.360
<v Speaker 1>we're talking about here, is not just organisms within that genus. Yeah,

0:17:31.359 --> 0:17:33.520
<v Speaker 1>it can be a little confusing because there are multiple

0:17:33.560 --> 0:17:36.960
<v Speaker 1>things called planaria. Planaria is also used to refer to

0:17:37.000 --> 0:17:40.240
<v Speaker 1>a larger family of related flat worms, and most of

0:17:40.280 --> 0:17:43.200
<v Speaker 1>the worms that are called planarians are outside the genus

0:17:43.200 --> 0:17:46.960
<v Speaker 1>of Planaria, in classes in the class to Bellaria or

0:17:47.000 --> 0:17:50.480
<v Speaker 1>the family Planaria. Day, So we're gonna be talking about

0:17:50.480 --> 0:17:53.320
<v Speaker 1>this broader class of planarians. Yeah, the old you'll find

0:17:53.359 --> 0:17:56.480
<v Speaker 1>them living in both fresh and salt water, in the water,

0:17:56.520 --> 0:18:00.119
<v Speaker 1>but also on land. A terrestrial Planaria are found the

0:18:00.200 --> 0:18:04.399
<v Speaker 1>soil or or damp areas or humid places. Some are

0:18:04.400 --> 0:18:08.320
<v Speaker 1>even parasitic, but most feed on protozoans, tiny snails and worms,

0:18:08.560 --> 0:18:13.600
<v Speaker 1>and they mostly feed at night. Mostly they're they're soft.

0:18:13.880 --> 0:18:16.560
<v Speaker 1>They tend to be soft leaf leaf shaped creatures that

0:18:16.680 --> 0:18:20.120
<v Speaker 1>range from three to fifteen millimeters, but they can reach

0:18:20.240 --> 0:18:23.840
<v Speaker 1>longer lengths. They have two eyes, and those two eyes

0:18:24.280 --> 0:18:28.440
<v Speaker 1>are often quite notable because they look like googly eyes. Yeah,

0:18:28.760 --> 0:18:31.920
<v Speaker 1>you've probably seen these before in actual photos of these

0:18:31.920 --> 0:18:35.760
<v Speaker 1>worms zoomed in their cross side. Uh. Some some of

0:18:35.800 --> 0:18:39.280
<v Speaker 1>them have tentacles, They have of ventral mouth opening and

0:18:39.400 --> 0:18:43.280
<v Speaker 1>no body cavity. They may swim via undulations or crawl

0:18:43.320 --> 0:18:47.520
<v Speaker 1>like a slug. They are also simultaneous hymaphrodites, having both

0:18:47.560 --> 0:18:52.080
<v Speaker 1>sexes within a single individual. Yet some utilize sexual reproductions

0:18:52.080 --> 0:18:55.080
<v Speaker 1>and and some utilize a sexual reproduction and of course

0:18:55.240 --> 0:18:58.879
<v Speaker 1>their legendary for their regenerative powers. Yes, and it's these

0:18:58.960 --> 0:19:01.880
<v Speaker 1>regenerative powers that are going to play a central role

0:19:01.920 --> 0:19:05.000
<v Speaker 1>in a lot of this research. Uh. And it may

0:19:05.040 --> 0:19:08.080
<v Speaker 1>have played a role in your individual research and even

0:19:08.080 --> 0:19:11.800
<v Speaker 1>science education growing up. Oh sure, yeah, maybe, I mean so,

0:19:12.240 --> 0:19:16.120
<v Speaker 1>I mean you could not have a planarian highlander situation,

0:19:16.520 --> 0:19:18.920
<v Speaker 1>you would have a real problem with trying to keep

0:19:19.000 --> 0:19:23.240
<v Speaker 1>a planary in decapitated. That's right. Uh. And and to

0:19:23.280 --> 0:19:26.800
<v Speaker 1>really drive this home, let's talk about just how amazing

0:19:26.800 --> 0:19:29.560
<v Speaker 1>their regenerative powers are. Basically, they can be cut in

0:19:29.640 --> 0:19:33.880
<v Speaker 1>half in each half will form into a fully formed individual.

0:19:34.359 --> 0:19:37.240
<v Speaker 1>In fact, it's been estimated that a mere one two

0:19:37.359 --> 0:19:41.040
<v Speaker 1>hundred and seventy nine of the organism can, once removed,

0:19:41.359 --> 0:19:45.199
<v Speaker 1>regenerate into a fully formed individual. So we're talking total

0:19:45.600 --> 0:19:50.280
<v Speaker 1>sourcer as apprentice territory here, and that's really not an overstatement. Yeah,

0:19:50.400 --> 0:19:51.960
<v Speaker 1>it would be like, you know, if you could chop

0:19:52.040 --> 0:19:55.520
<v Speaker 1>my finger off and it would grow a whole new me. Yeah. Really,

0:19:55.520 --> 0:19:57.840
<v Speaker 1>And that's I mean, that's amazing because we've we've talked

0:19:57.880 --> 0:20:00.439
<v Speaker 1>on the show before about the regenerative p hours of

0:20:01.040 --> 0:20:04.280
<v Speaker 1>of various vertebrate organisms. For example, you know, and it's

0:20:04.280 --> 0:20:06.520
<v Speaker 1>impressive that a lizard co jettis in its tail and

0:20:06.600 --> 0:20:10.120
<v Speaker 1>re mostly regrow that tail. Things of that nature. Many

0:20:10.160 --> 0:20:12.520
<v Speaker 1>of the healing abilities of even the human body are

0:20:12.560 --> 0:20:16.760
<v Speaker 1>pretty substantial when you really set back and and consider them.

0:20:17.119 --> 0:20:20.800
<v Speaker 1>But this is this is something far beyond most of

0:20:20.840 --> 0:20:23.240
<v Speaker 1>those examples. Yeah, I would say this goes even beyond

0:20:23.280 --> 0:20:27.199
<v Speaker 1>the impressive examples we see in like amphibians, like salamanders.

0:20:28.119 --> 0:20:31.239
<v Speaker 1>You can even cut their head in half, kind of

0:20:31.280 --> 0:20:33.399
<v Speaker 1>like you started to cut them in half with a

0:20:33.440 --> 0:20:36.680
<v Speaker 1>sword and then you got bored like around the neck. Uh.

0:20:36.840 --> 0:20:38.840
<v Speaker 1>You can, you can. You can cut their head in

0:20:38.920 --> 0:20:42.240
<v Speaker 1>half and then just stop and then they'll they'll develop

0:20:42.320 --> 0:20:45.760
<v Speaker 1>two heads and live that way. In some cases, Uh,

0:20:45.800 --> 0:20:48.119
<v Speaker 1>they have. There have been some very interesting experiments in

0:20:48.160 --> 0:20:51.600
<v Speaker 1>how they regenerate in micro gravity as well. For instance,

0:20:51.640 --> 0:20:54.840
<v Speaker 1>normally a two headed planaria is a rare occurrence in nature,

0:20:55.119 --> 0:20:58.440
<v Speaker 1>but in one experiment, space exposed worms were far more

0:20:58.480 --> 0:21:01.080
<v Speaker 1>likely developed a second head to the tune of one

0:21:01.080 --> 0:21:05.000
<v Speaker 1>in fifteen worms. Uh. In amputating this worm within result

0:21:05.080 --> 0:21:08.520
<v Speaker 1>in more two headed worms. And this is this is

0:21:08.560 --> 0:21:11.399
<v Speaker 1>just one area where you know their their further study

0:21:11.560 --> 0:21:15.400
<v Speaker 1>can help us understand their biology and uh it also

0:21:15.440 --> 0:21:18.280
<v Speaker 1>help us better understand the effects of micro gravity on

0:21:18.320 --> 0:21:21.800
<v Speaker 1>an organism. But of course, their regenerative powers in general

0:21:21.920 --> 0:21:25.480
<v Speaker 1>continue to garner a great deal of research attention. Yeah.

0:21:25.520 --> 0:21:31.600
<v Speaker 1>I mean the medical applications of regenerative biology itself are

0:21:31.720 --> 0:21:35.840
<v Speaker 1>very important. Yeah, Worth noting that Darwin actually observed these

0:21:35.880 --> 0:21:39.879
<v Speaker 1>amazing creatures as well. Uh, and their amazing ability. I

0:21:39.880 --> 0:21:42.719
<v Speaker 1>will read a quick quote here from Charles Darwin. Alright,

0:21:42.880 --> 0:21:45.960
<v Speaker 1>this is from a journal of researches into the natural

0:21:46.040 --> 0:21:49.080
<v Speaker 1>history and geology of the countries visited during the voyage

0:21:49.080 --> 0:21:53.520
<v Speaker 1>of HMS Beagle around the world. Quote. Having cut one

0:21:53.560 --> 0:21:57.040
<v Speaker 1>of them transversely into two nearly equal parts in the

0:21:57.080 --> 0:22:00.480
<v Speaker 1>course of a fortnight, both had the shape of perfect animals.

0:22:00.840 --> 0:22:03.359
<v Speaker 1>I had, however, so divided the body that one of

0:22:03.400 --> 0:22:07.080
<v Speaker 1>the halves contained both the inferior or orifices, and the

0:22:07.119 --> 0:22:10.800
<v Speaker 1>other in consequence none In the course of twenty five

0:22:10.880 --> 0:22:13.600
<v Speaker 1>days from the operation, the more perfect half could not

0:22:13.680 --> 0:22:17.399
<v Speaker 1>have been distinguished from any other specimen. And there's more

0:22:17.400 --> 0:22:19.760
<v Speaker 1>that you know here, obviously, But that's just a taste

0:22:19.760 --> 0:22:23.399
<v Speaker 1>of his fascination with the organism itself, sitting in the

0:22:23.400 --> 0:22:27.000
<v Speaker 1>Beagle cutting up worms, and and they've continued to fascinate

0:22:27.040 --> 0:22:30.160
<v Speaker 1>researches as well. Uh. You know, for a number of reasons.

0:22:30.560 --> 0:22:34.800
<v Speaker 1>Um as pointed out by a doctor only are Pagan

0:22:35.760 --> 0:22:38.880
<v Speaker 1>author of the first brain. Uh. He pointed this out

0:22:38.880 --> 0:22:42.159
<v Speaker 1>in a two thousand fourteen interview with futurism. There are

0:22:42.160 --> 0:22:46.240
<v Speaker 1>other organisms with this kind of regenerative ability, but very

0:22:46.320 --> 0:22:49.439
<v Speaker 1>few are quite as excellent at it as the planarian.

0:22:49.840 --> 0:22:53.160
<v Speaker 1>And they also have a relatively complex nervous system, which

0:22:53.160 --> 0:22:56.120
<v Speaker 1>contributes to their appeal, especially when you get into areas

0:22:56.160 --> 0:22:58.880
<v Speaker 1>where you're talking about what can we learn from the

0:22:59.000 --> 0:23:02.119
<v Speaker 1>from a planarian that we can then apply potentially in

0:23:02.160 --> 0:23:07.040
<v Speaker 1>the future to human physiology. Now, just a few other

0:23:07.119 --> 0:23:11.000
<v Speaker 1>quick fascinating facts about them. At least one variety produces

0:23:11.000 --> 0:23:16.480
<v Speaker 1>a deadly U produces the deadly tetrodotoxin um. In general,

0:23:16.560 --> 0:23:21.560
<v Speaker 1>their mouths emerge from a proboscis located halfway down their body.

0:23:21.600 --> 0:23:25.520
<v Speaker 1>And those googly eyes sometimes described as cross eyes. Apparently

0:23:25.760 --> 0:23:29.000
<v Speaker 1>nobody's exactly sure why that is the case. I will

0:23:29.000 --> 0:23:32.399
<v Speaker 1>say the google eyes often look like an illustration, and

0:23:32.440 --> 0:23:35.600
<v Speaker 1>they present a problem with the presentation of these planarians

0:23:35.600 --> 0:23:38.760
<v Speaker 1>and the display the google eyes, because you can show

0:23:38.760 --> 0:23:41.680
<v Speaker 1>a photo of them and it looks like somebody drew it.

0:23:41.680 --> 0:23:44.720
<v Speaker 1>It doesn't look like a real world organism. It always,

0:23:44.720 --> 0:23:47.600
<v Speaker 1>even to this day, it makes me think of Spy

0:23:47.720 --> 0:23:50.920
<v Speaker 1>Versus Spy and Mad Magazine. They look like the the

0:23:51.000 --> 0:23:53.560
<v Speaker 1>two Spies, the Black Spy and the White Spy from

0:23:53.600 --> 0:23:58.240
<v Speaker 1>that cartoon. Yep, So that's the subject in a nutshell. Uh,

0:23:58.320 --> 0:24:00.600
<v Speaker 1>But I imagine we should start turning our attention to

0:24:00.640 --> 0:24:03.199
<v Speaker 1>some of the experiments. Right, So I would say the

0:24:03.280 --> 0:24:08.960
<v Speaker 1>story begins with the psychological technique of classical conditioning. So

0:24:09.320 --> 0:24:13.840
<v Speaker 1>the most common example of classical conditioning is Pavlov's dogs. Right.

0:24:14.320 --> 0:24:18.080
<v Speaker 1>The Russian physiologist Ivan Pavlov, who lived eighteen forty nine

0:24:18.080 --> 0:24:21.840
<v Speaker 1>and nineteen thirty six, was famously studying the process of

0:24:21.880 --> 0:24:25.920
<v Speaker 1>digestion in dogs when he noticed that not only did

0:24:25.920 --> 0:24:28.840
<v Speaker 1>the dogs begin to drool in the presence of food.

0:24:29.080 --> 0:24:30.920
<v Speaker 1>That that would make sense, right, you put some food

0:24:30.960 --> 0:24:34.639
<v Speaker 1>in front of a dog. The digestion process begins with

0:24:34.760 --> 0:24:38.040
<v Speaker 1>the mental stimulation of the side of food. Right, you

0:24:38.080 --> 0:24:41.480
<v Speaker 1>start producing saliva or drool in order to help you eat.

0:24:41.760 --> 0:24:45.280
<v Speaker 1>It actually went beyond that. Pavlov observed that the dogs

0:24:45.280 --> 0:24:47.879
<v Speaker 1>would start to drool as soon as they saw the

0:24:48.040 --> 0:24:52.640
<v Speaker 1>lab assistant who usually fed them. So there's a physiological

0:24:52.720 --> 0:24:56.560
<v Speaker 1>justification for producing extra saliva. When an animal sees food,

0:24:57.200 --> 0:24:59.880
<v Speaker 1>the animal's body is preparing to eat. But Pavlov, since

0:25:00.040 --> 0:25:04.480
<v Speaker 1>I was realizing that through repeated training, you could separate

0:25:04.600 --> 0:25:07.880
<v Speaker 1>the stimulus and the response through one or more layers

0:25:07.880 --> 0:25:11.680
<v Speaker 1>of abstraction. So, of course the lab assistant isn't food,

0:25:12.080 --> 0:25:15.800
<v Speaker 1>but the dog comes to learn through repeated instances that

0:25:15.920 --> 0:25:18.960
<v Speaker 1>every time it sees the assistant, it's about to get food.

0:25:19.000 --> 0:25:21.960
<v Speaker 1>And thus the body prepares itself to eat and digest.

0:25:22.600 --> 0:25:24.840
<v Speaker 1>And this was later done with all kinds of different things.

0:25:24.840 --> 0:25:28.040
<v Speaker 1>With auditory cues such as a bell or a metronome,

0:25:28.440 --> 0:25:31.240
<v Speaker 1>the dog, here's the sound. It knows the food is coming,

0:25:31.280 --> 0:25:33.720
<v Speaker 1>and the body responds. And I don't know about you,

0:25:33.760 --> 0:25:37.360
<v Speaker 1>but like, this is something that helps define my relationship

0:25:37.440 --> 0:25:39.919
<v Speaker 1>with my pet. Like I think about this all the

0:25:39.960 --> 0:25:46.359
<v Speaker 1>time when observing my cat's relationship with our household environment.

0:25:46.520 --> 0:25:51.120
<v Speaker 1>Absolutely I think about my dog's relationship with any stimulus

0:25:51.119 --> 0:25:54.520
<v Speaker 1>such as sound or visual cues that may signal a

0:25:54.640 --> 0:25:58.000
<v Speaker 1>walk is about to take place. So like the picking

0:25:58.080 --> 0:26:00.800
<v Speaker 1>up of the keys, the putting on of the coach,

0:26:01.000 --> 0:26:04.560
<v Speaker 1>that putting on of the shoes, all these different things

0:26:04.600 --> 0:26:09.280
<v Speaker 1>are like start to trigger this powerful excitement reaction in

0:26:09.359 --> 0:26:12.119
<v Speaker 1>the dog, even though none of them are are opening

0:26:12.160 --> 0:26:14.119
<v Speaker 1>the door, leashing up, going out for a walk, right,

0:26:14.200 --> 0:26:17.800
<v Speaker 1>none of them are in and of themselves the desired reward,

0:26:18.160 --> 0:26:21.679
<v Speaker 1>but there are various bits of stimuli associated with that

0:26:21.720 --> 0:26:24.760
<v Speaker 1>eventual reward of course. So yeah, we are constantly, even

0:26:24.800 --> 0:26:30.600
<v Speaker 1>accidentally classically conditioning our pets whenever something that they're interested in,

0:26:30.760 --> 0:26:34.000
<v Speaker 1>whether positively or negatively, is about to happen. If it

0:26:34.080 --> 0:26:37.480
<v Speaker 1>happens repeatedly, you're probably training them, whether you want to

0:26:37.520 --> 0:26:40.600
<v Speaker 1>be or not. Can is open, might be foods as

0:26:40.640 --> 0:26:47.600
<v Speaker 1>the cat um, the rattle of foil, walking into the kitchen, um, etcetera. Yeah, uh,

0:26:47.640 --> 0:26:50.080
<v Speaker 1>and this is widely acknowledged as one of the most

0:26:50.240 --> 0:26:54.040
<v Speaker 1>useful discoveries in the history of experimental psychology. Of course,

0:26:54.040 --> 0:26:57.160
<v Speaker 1>it works with both positive and negative stimuli. You can also,

0:26:57.200 --> 0:27:00.760
<v Speaker 1>for example, administer a mildly painful shock every time somebody

0:27:00.800 --> 0:27:04.359
<v Speaker 1>hears the Batman theme, and after enough repetition, the person

0:27:04.480 --> 0:27:06.960
<v Speaker 1>or the animal is probably gonna freeze or WinCE when

0:27:06.960 --> 0:27:09.920
<v Speaker 1>they hear the music, even if no shock is administered.

0:27:10.160 --> 0:27:12.919
<v Speaker 1>A call back to our recent episode of Invention, our

0:27:13.000 --> 0:27:16.399
<v Speaker 1>other podcast about the history the techno history of inventions,

0:27:16.520 --> 0:27:19.200
<v Speaker 1>we did want on the turnspit Dog. If you're not aware,

0:27:19.240 --> 0:27:21.679
<v Speaker 1>there was a time in the history, especially in Britain,

0:27:21.880 --> 0:27:24.640
<v Speaker 1>where small dogs turned little wheels to keep the spit

0:27:24.680 --> 0:27:27.520
<v Speaker 1>of meat turning by the fire. And one of the

0:27:27.520 --> 0:27:31.679
<v Speaker 1>problems with using dogs for this particular bit of work

0:27:32.080 --> 0:27:33.879
<v Speaker 1>is that they are smart and they pick up on

0:27:33.920 --> 0:27:37.800
<v Speaker 1>these clues. So you they might pick up on these

0:27:37.920 --> 0:27:42.040
<v Speaker 1>little signs that that inform them that some meat is

0:27:42.040 --> 0:27:44.400
<v Speaker 1>going to be skewer, that they're the roast is gonna

0:27:44.400 --> 0:27:46.200
<v Speaker 1>be had for dinner, or maybe just a big dinner

0:27:46.240 --> 0:27:48.080
<v Speaker 1>is going to take place, and then the dog will

0:27:48.160 --> 0:27:50.639
<v Speaker 1>run off and hide. Exactly what they should have found

0:27:50.640 --> 0:27:53.520
<v Speaker 1>to turn those spits was like a large invertebrate that

0:27:53.640 --> 0:27:57.880
<v Speaker 1>was not very good at learning through classical conditioning. Oh

0:27:57.960 --> 0:27:59.879
<v Speaker 1>and just to keep things clear, because this is some

0:28:00.080 --> 0:28:02.720
<v Speaker 1>thing that I used to confuse myself. What's the difference

0:28:02.760 --> 0:28:06.800
<v Speaker 1>between these two terms, classical conditioning and operant conditioning. You've

0:28:06.800 --> 0:28:09.760
<v Speaker 1>probably heard both of them. Uh, they're similar. They're both

0:28:09.760 --> 0:28:13.640
<v Speaker 1>based on learning associations between two things. But the difference

0:28:13.720 --> 0:28:18.760
<v Speaker 1>is classical conditioning pairs two external stimuli. For example, I

0:28:18.840 --> 0:28:21.120
<v Speaker 1>show you a picture of Sean Connery and I give

0:28:21.160 --> 0:28:23.800
<v Speaker 1>you an electric shock. So every time you know, if

0:28:23.800 --> 0:28:25.840
<v Speaker 1>you do that enough, when you see the picture of

0:28:25.840 --> 0:28:29.119
<v Speaker 1>Sean Connery, you'll win s or freeze, or react as

0:28:29.119 --> 0:28:31.960
<v Speaker 1>if you're going to get a shock, even if you don't. Meanwhile,

0:28:32.000 --> 0:28:36.480
<v Speaker 1>operant conditioning associates a reward or a punishment with a

0:28:36.640 --> 0:28:40.680
<v Speaker 1>behavior supplied by the subject. So, for example, if you

0:28:40.760 --> 0:28:43.480
<v Speaker 1>jump three times, you get a bag of candy corn.

0:28:44.640 --> 0:28:47.800
<v Speaker 1>Now we know perfectly well that these types of conditioning,

0:28:47.840 --> 0:28:51.560
<v Speaker 1>classical conditioning operant conditioning work with a number of more

0:28:51.600 --> 0:28:55.560
<v Speaker 1>complex life forms like rats, like dogs, like humans. But

0:28:55.840 --> 0:28:58.240
<v Speaker 1>there was an interesting question that came up in the

0:28:58.280 --> 0:29:02.120
<v Speaker 1>twentieth century, which was did it work for less complex

0:29:02.200 --> 0:29:05.760
<v Speaker 1>life forms like say worms. All right, on that note,

0:29:05.800 --> 0:29:07.560
<v Speaker 1>we're going to take one more break, but we'll be

0:29:07.680 --> 0:29:13.440
<v Speaker 1>right back. Thank alright, we're back, alright. So we've been

0:29:13.480 --> 0:29:19.040
<v Speaker 1>discussing classical conditioning, behavioral conditioning, and the fact that this

0:29:19.160 --> 0:29:21.760
<v Speaker 1>we we know this works in more complex life forms

0:29:21.760 --> 0:29:25.000
<v Speaker 1>like mammals, rats, dogs, humans, but does it work in

0:29:25.160 --> 0:29:29.440
<v Speaker 1>less complex life forms like worms and other invertebrates. In

0:29:29.520 --> 0:29:33.000
<v Speaker 1>the nineteen fifties, the answer to this question was pretty

0:29:33.040 --> 0:29:37.320
<v Speaker 1>well understood, and that answer was no. Invertebrates could not

0:29:37.600 --> 0:29:40.640
<v Speaker 1>learn the way that rats and monkeys and other mammals

0:29:40.680 --> 0:29:43.680
<v Speaker 1>could mark. Rilling makes this point at length in his article,

0:29:43.760 --> 0:29:47.760
<v Speaker 1>writing that the widely held view, especially among zoologists and

0:29:48.120 --> 0:29:52.080
<v Speaker 1>psychologists who were not experts directly in animal behavior, was

0:29:52.160 --> 0:29:57.040
<v Speaker 1>that invertebrates had no capacity for internal memory states, and

0:29:57.080 --> 0:29:59.400
<v Speaker 1>the only thing that they that they could do that

0:29:59.440 --> 0:30:03.560
<v Speaker 1>would even a approximate learning might come from temporary changes

0:30:03.640 --> 0:30:07.920
<v Speaker 1>in body tissue. Really quotes a leading textbook of comparative

0:30:07.920 --> 0:30:10.040
<v Speaker 1>psychology at the time, I think it's from the nineteen

0:30:10.080 --> 0:30:14.000
<v Speaker 1>thirties on a question of whether invertebrates can learn associations

0:30:14.040 --> 0:30:18.800
<v Speaker 1>through conditioning and the passage reads experience may temporarily alter

0:30:18.920 --> 0:30:22.720
<v Speaker 1>the form of behavior by inducing local tissue change, but

0:30:22.840 --> 0:30:25.840
<v Speaker 1>such changes are wiped out by subsequent events and have

0:30:26.000 --> 0:30:29.880
<v Speaker 1>no permanent altering effect. Uh. It was also the opinion

0:30:29.920 --> 0:30:33.000
<v Speaker 1>of a contemporary researcher in the nineteen fifties I think

0:30:33.080 --> 0:30:37.719
<v Speaker 1>named Donald Jensen quote that no invertebrate, no matter how complex,

0:30:37.840 --> 0:30:41.640
<v Speaker 1>is capable of showing true associative learning. So that's the

0:30:41.680 --> 0:30:45.880
<v Speaker 1>consensus invertebrates can't learn. As for this distinction they're making

0:30:45.920 --> 0:30:50.360
<v Speaker 1>about true learning versus tissue change, I think the distinction

0:30:50.400 --> 0:30:52.680
<v Speaker 1>here is that, like if a worm or an insect

0:30:52.800 --> 0:30:55.600
<v Speaker 1>could be conditioned to go left rather than right in

0:30:55.640 --> 0:30:58.760
<v Speaker 1>a maze. It might only be because, for example, the

0:30:58.760 --> 0:31:01.880
<v Speaker 1>conditioning process had made the legs or the wings or

0:31:01.920 --> 0:31:05.360
<v Speaker 1>something on one side of the body stronger. Uh. The

0:31:05.400 --> 0:31:09.040
<v Speaker 1>bottom line was that animals without backbones cannot truly learn

0:31:09.200 --> 0:31:12.239
<v Speaker 1>the same way animals like us can. You couldn't have

0:31:12.280 --> 0:31:16.800
<v Speaker 1>a Pavlov's worm or a Pavlov's crab. Though the authors

0:31:16.840 --> 0:31:20.040
<v Speaker 1>of the textbook quoted by Rilling make exactly one exception.

0:31:20.520 --> 0:31:23.760
<v Speaker 1>They admit that this rule might not apply to planaria.

0:31:24.760 --> 0:31:28.760
<v Speaker 1>But of course, McConnell, as usual, was sort of disposition

0:31:28.760 --> 0:31:31.600
<v Speaker 1>alle opposed to the conventional wisdom. He was something of

0:31:31.600 --> 0:31:34.840
<v Speaker 1>an iconoclast, and he did not accept the idea in

0:31:34.880 --> 0:31:38.360
<v Speaker 1>the nineteen fifties that invertebrates could not learn. He wanted

0:31:38.440 --> 0:31:41.120
<v Speaker 1>to find out if worms could be trained. Could he

0:31:41.160 --> 0:31:45.440
<v Speaker 1>become a worm tamer. So here we move on into

0:31:45.440 --> 0:31:49.360
<v Speaker 1>the first stage of this research history, the worm conditioning.

0:31:49.440 --> 0:31:53.280
<v Speaker 1>So in nineteen fifty three McConnell was in graduate studies

0:31:53.360 --> 0:31:56.640
<v Speaker 1>at the University of Texas and UH. Then this year

0:31:56.680 --> 0:31:58.880
<v Speaker 1>and some of the following years he he collaborated with

0:31:58.920 --> 0:32:04.280
<v Speaker 1>another researcher named Robert Thompson to demonstrate that planarians could

0:32:04.320 --> 0:32:07.920
<v Speaker 1>be classically conditioned, and the basic set up here involved

0:32:08.080 --> 0:32:12.240
<v Speaker 1>learning of responses to light light stimuli. Again, most of

0:32:12.240 --> 0:32:15.720
<v Speaker 1>them are going to be nocturnal. Uh, so light is

0:32:15.720 --> 0:32:18.000
<v Speaker 1>going to play an important role in their behavior. Yeah,

0:32:18.040 --> 0:32:20.960
<v Speaker 1>and certainly yeah through their you know, day night cycles

0:32:21.000 --> 0:32:23.080
<v Speaker 1>and stuff like that. So they can detect a light.

0:32:23.160 --> 0:32:25.200
<v Speaker 1>They have the ability to to tell when a light

0:32:25.320 --> 0:32:30.160
<v Speaker 1>is being flashed. So planaria usually live, uh, at least

0:32:30.160 --> 0:32:32.600
<v Speaker 1>the planaria they were working with usually live in aquatic

0:32:32.720 --> 0:32:35.600
<v Speaker 1>environments and they move from one place to another by

0:32:35.600 --> 0:32:40.000
<v Speaker 1>gliding across the bottom surface of a pool, usually along

0:32:40.080 --> 0:32:44.320
<v Speaker 1>slime trails that they deposit as they move. So McConnell

0:32:44.360 --> 0:32:47.160
<v Speaker 1>and Thompson put together a test with a foot long

0:32:47.280 --> 0:32:50.480
<v Speaker 1>pool of water in which they would deposit a planarian

0:32:51.000 --> 0:32:53.040
<v Speaker 1>and then the worm could glide from one end to

0:32:53.080 --> 0:32:55.840
<v Speaker 1>the pool to the other. Then, for the conditioning groups,

0:32:55.920 --> 0:32:59.600
<v Speaker 1>McConnell and Thompson would train the worms by flashing a

0:32:59.720 --> 0:33:03.760
<v Speaker 1>light above the water, paired with an electric shock applied

0:33:03.800 --> 0:33:06.520
<v Speaker 1>to the whole pool to the water and the conditioned

0:33:06.520 --> 0:33:10.080
<v Speaker 1>responses the researchers were looking for in response to the light.

0:33:10.160 --> 0:33:14.120
<v Speaker 1>After training were contraction of the worm's body and turning

0:33:14.200 --> 0:33:17.600
<v Speaker 1>of the of the direction, and when the behavior of

0:33:17.640 --> 0:33:21.480
<v Speaker 1>these trained planaria was compared with control groups, they found

0:33:21.520 --> 0:33:24.800
<v Speaker 1>that while the planarian learning effect was not extremely strong,

0:33:24.880 --> 0:33:29.280
<v Speaker 1>it was undeniably present. The condition worms showed an increase

0:33:29.320 --> 0:33:33.080
<v Speaker 1>in contraction in response to the light from from about

0:33:33.080 --> 0:33:35.840
<v Speaker 1>two percent in the first fifty trials to about ten

0:33:35.960 --> 0:33:40.560
<v Speaker 1>percent in the last fifty trials, and turns started at

0:33:40.560 --> 0:33:44.360
<v Speaker 1>a rate of about in response to light, but increased

0:33:44.360 --> 0:33:48.719
<v Speaker 1>throughout the test period to thirty five percent after conditioning. So,

0:33:48.760 --> 0:33:51.240
<v Speaker 1>as you can see, the planarian probably does not learn

0:33:51.280 --> 0:33:54.680
<v Speaker 1>it nearly the efficiency of a mammal like a rat

0:33:54.760 --> 0:33:57.479
<v Speaker 1>or a dog or an orangutan, but these nevertheless are

0:33:57.560 --> 0:34:02.360
<v Speaker 1>significant changes. So, however weak, some learning was clearly taking place.

0:34:02.840 --> 0:34:05.200
<v Speaker 1>And as a as a modern note, just to be clear,

0:34:05.280 --> 0:34:08.560
<v Speaker 1>the established wisdom about invertebrates being unable to learn through

0:34:08.600 --> 0:34:12.960
<v Speaker 1>association was pretty much completely wrong, and planaria were not

0:34:13.040 --> 0:34:15.560
<v Speaker 1>the only exception. I was looking at one paper by

0:34:15.680 --> 0:34:20.760
<v Speaker 1>Hawkins and burn From published in Cold Springs Harbor Perspectives

0:34:20.800 --> 0:34:25.920
<v Speaker 1>Perspectives in biology called associate of Learning and Invertebrates, and

0:34:25.960 --> 0:34:29.240
<v Speaker 1>they say that rudimentary forms of associative learning are found

0:34:29.320 --> 0:34:34.239
<v Speaker 1>basically throughout the animal kingdom. One commonly studied example used

0:34:34.239 --> 0:34:37.880
<v Speaker 1>in invertebrate learning and memory research is the California sea

0:34:37.960 --> 0:34:45.680
<v Speaker 1>hair or applies a Californica. Almost had applies a californication californica.

0:34:46.239 --> 0:34:48.759
<v Speaker 1>So it's a huge sea slug. I was looking this off.

0:34:48.880 --> 0:34:51.680
<v Speaker 1>It could barely be up to seventy five centimeters long

0:34:51.760 --> 0:34:54.840
<v Speaker 1>and way up to about seven kilograms or fifteen pounds.

0:34:55.320 --> 0:34:57.680
<v Speaker 1>That's a that's a real mother of a sea slug.

0:34:57.920 --> 0:35:00.239
<v Speaker 1>Can you imagine trying to pick up a fifteen hound

0:35:00.280 --> 0:35:04.360
<v Speaker 1>sea slug? No? No, I mean one scarcely imagines it

0:35:04.640 --> 0:35:08.080
<v Speaker 1>coming out of the water, right, But I can't help

0:35:08.160 --> 0:35:10.480
<v Speaker 1>just because we're talking about something that they see hair,

0:35:11.520 --> 0:35:15.520
<v Speaker 1>I always think of them behaving and rabbit like behavior,

0:35:15.600 --> 0:35:18.239
<v Speaker 1>you know, or even delivering Easter eggs. Well, one also

0:35:18.280 --> 0:35:20.840
<v Speaker 1>thinks about the sea monster that was popular on medieval

0:35:20.840 --> 0:35:23.480
<v Speaker 1>and Renaissance maps, the sea hare. I relieve I talked

0:35:23.520 --> 0:35:26.520
<v Speaker 1>about Chet Manduser with the sea the sea hare, yes,

0:35:26.680 --> 0:35:29.200
<v Speaker 1>or I talked with chet Mandouser about the sea hare. Yeah.

0:35:29.200 --> 0:35:31.319
<v Speaker 1>That's one of the fun things about sea monsters is

0:35:31.360 --> 0:35:33.120
<v Speaker 1>that we have all these things that are sort of

0:35:33.200 --> 0:35:35.279
<v Speaker 1>name have the same name, like a sea hair, a

0:35:35.360 --> 0:35:39.160
<v Speaker 1>sea lion, etcetera. But in the history of sea monsters,

0:35:39.239 --> 0:35:41.480
<v Speaker 1>pretty much every creature that was known to reside on

0:35:41.520 --> 0:35:44.480
<v Speaker 1>the surface had a double in the deep. Right, the

0:35:44.880 --> 0:35:47.560
<v Speaker 1>medieval and Renaissance map sea hair has nothing to do

0:35:47.600 --> 0:35:49.120
<v Speaker 1>with the sea here. It was not a slug. It

0:35:49.200 --> 0:35:52.040
<v Speaker 1>had fuzzy bunny ears, and you could have a velveteen

0:35:52.120 --> 0:35:54.520
<v Speaker 1>sea hair and it would be very sad. But yeah,

0:35:54.520 --> 0:35:57.160
<v Speaker 1>so this sea hare is a giant sea slug, and

0:35:57.480 --> 0:36:01.200
<v Speaker 1>experiments show that it can learn associate sans, for example,

0:36:01.239 --> 0:36:05.160
<v Speaker 1>a conditioned retraction of the gill and siphon organs that

0:36:05.360 --> 0:36:08.919
<v Speaker 1>strengthened by noxious stimuli like electric shocks to the tail.

0:36:09.280 --> 0:36:12.480
<v Speaker 1>So while learning responses are going to vary according to

0:36:12.480 --> 0:36:15.320
<v Speaker 1>a creature's nero anatomy, there appears to be no general

0:36:15.400 --> 0:36:19.000
<v Speaker 1>rule against invertebrate learning. Okay, that's good to know heading forward.

0:36:19.080 --> 0:36:21.880
<v Speaker 1>So it's not just this idea that like all the

0:36:21.960 --> 0:36:25.880
<v Speaker 1>eggs are in this one basket for invertebrate learning, only

0:36:25.920 --> 0:36:28.280
<v Speaker 1>the planarians can learn. No, that is not the case.

0:36:28.600 --> 0:36:32.200
<v Speaker 1>We We got some smart sea hairs, relatively smart but

0:36:32.239 --> 0:36:35.080
<v Speaker 1>again to emphasize, this was the opposite of the conventional

0:36:35.120 --> 0:36:38.600
<v Speaker 1>wisdom leading into the nineteen fifties UH, and to some degree,

0:36:38.640 --> 0:36:42.600
<v Speaker 1>even after research demonstrating that there was invertebrate learning like,

0:36:42.640 --> 0:36:46.520
<v Speaker 1>consensus among experts at the time resisted the idea of

0:36:46.520 --> 0:36:50.760
<v Speaker 1>true invertebrate learning even after some published studies. One example

0:36:50.840 --> 0:36:54.920
<v Speaker 1>cited by Rilling concerns a response after McConnell and colleagues

0:36:55.280 --> 0:36:58.160
<v Speaker 1>seemed to indicate that the condition learning they could elicit

0:36:58.239 --> 0:37:02.400
<v Speaker 1>in Planaria had to sustained effect that the memory associations

0:37:02.480 --> 0:37:05.239
<v Speaker 1>lasted not just for hours, not just for days, but

0:37:05.440 --> 0:37:07.799
<v Speaker 1>literally for for months at a time. I think they

0:37:07.800 --> 0:37:10.880
<v Speaker 1>set up to four months. In response to this, UH,

0:37:11.040 --> 0:37:15.399
<v Speaker 1>a renowned zoologist specializing in invertebrates named Libby Hyman said

0:37:15.520 --> 0:37:19.319
<v Speaker 1>apparently said multiple times, no, that just can't be, and

0:37:19.480 --> 0:37:22.359
<v Speaker 1>argued that maybe a planarian could remember something for like

0:37:22.480 --> 0:37:25.320
<v Speaker 1>five minutes or so, but the memory retention for weeks

0:37:25.400 --> 0:37:28.520
<v Speaker 1>or months was just unthinkable. But we already see some

0:37:28.760 --> 0:37:32.360
<v Speaker 1>things at work here in UH in McConnell's story. So

0:37:32.520 --> 0:37:35.600
<v Speaker 1>Rilling points out that while these results did bear out,

0:37:35.760 --> 0:37:39.239
<v Speaker 1>and UH he thinks did generally demonstrate planarian learning and

0:37:39.520 --> 0:37:42.439
<v Speaker 1>and showed something that is real and true. You could

0:37:42.440 --> 0:37:47.120
<v Speaker 1>already see some of McConnell's methodological shortcomings at work. For example,

0:37:47.480 --> 0:37:50.560
<v Speaker 1>he and Thompson did not use any kind of automatic

0:37:50.680 --> 0:37:54.040
<v Speaker 1>measuring of the flatworm responses, but instead use the more

0:37:54.080 --> 0:37:58.880
<v Speaker 1>traditional method of quote naturalistic observation, which I think means

0:37:58.960 --> 0:38:01.600
<v Speaker 1>that they just watch to see what happened. You can

0:38:01.600 --> 0:38:05.359
<v Speaker 1>probably guess why psychologists today try to find ways not

0:38:05.480 --> 0:38:09.000
<v Speaker 1>to rely on experiment or is just eyebawling it when

0:38:09.040 --> 0:38:12.319
<v Speaker 1>making a judgment about what happened. Uh, You're you're way

0:38:12.360 --> 0:38:14.840
<v Speaker 1>more subject to experiment or bias this way. You want to,

0:38:14.920 --> 0:38:18.280
<v Speaker 1>if possible, come up with an automatic method, right, because

0:38:18.320 --> 0:38:21.840
<v Speaker 1>I mean, ironically, what you're dealing with when you're just

0:38:21.920 --> 0:38:25.759
<v Speaker 1>dealing with observations as you are of course dealing with memory. Um,

0:38:26.120 --> 0:38:28.759
<v Speaker 1>even if certainly if you're making notes about what you're

0:38:28.760 --> 0:38:31.560
<v Speaker 1>seeing as you're seeing it, you're still having to rely

0:38:31.680 --> 0:38:35.319
<v Speaker 1>then on your memory of the observation far better and

0:38:35.400 --> 0:38:38.200
<v Speaker 1>you know, far more reliable to be able to point

0:38:38.280 --> 0:38:42.200
<v Speaker 1>to say measurements yeah, yeah, done by a machine or something.

0:38:42.239 --> 0:38:45.960
<v Speaker 1>Have some kind of method that's not just your subjective judgment,

0:38:46.000 --> 0:38:48.879
<v Speaker 1>of what you just saw, being able to say this

0:38:49.080 --> 0:38:52.920
<v Speaker 1>organism moved, you know, however far have left in this experiment,

0:38:52.960 --> 0:38:57.000
<v Speaker 1>and then in a second experiment the same thing definitely occur. Yes, uh.

0:38:57.000 --> 0:38:59.440
<v Speaker 1>And I want to be clear that like this doesn't

0:38:59.600 --> 0:39:03.080
<v Speaker 1>experiment men or bias doesn't have to result from experimenters

0:39:03.080 --> 0:39:07.000
<v Speaker 1>trying to trick anyone or being trying to commit conscious

0:39:07.000 --> 0:39:09.840
<v Speaker 1>fraud for their results. They can be doing their honest

0:39:09.880 --> 0:39:13.120
<v Speaker 1>best to try to represent things accurately. But still, you know,

0:39:14.360 --> 0:39:18.560
<v Speaker 1>observation is somewhat subjective. You're going to honestly believe you

0:39:18.600 --> 0:39:21.880
<v Speaker 1>saw something differently than somebody else did, or you know,

0:39:21.880 --> 0:39:24.560
<v Speaker 1>our observations and our memories are not perfect, and they're

0:39:24.680 --> 0:39:27.560
<v Speaker 1>highly influenced by what we want to see or expect

0:39:27.640 --> 0:39:31.360
<v Speaker 1>to see. Also, Rilling points out that McConnell and Thompson's

0:39:31.360 --> 0:39:35.600
<v Speaker 1>graduate advisor here was a comparative psychologist named M. E. Bitterman,

0:39:36.239 --> 0:39:39.160
<v Speaker 1>who was critical of both students for not being careful enough,

0:39:39.200 --> 0:39:43.279
<v Speaker 1>for example, not including a control group that were exposed

0:39:43.280 --> 0:39:47.920
<v Speaker 1>to both shocks and light flashes but unpaired from each other,

0:39:48.120 --> 0:39:51.319
<v Speaker 1>to more firmly establish a causal link for the for

0:39:51.360 --> 0:39:54.040
<v Speaker 1>the conditioning process itself. But what if they had gotten

0:39:54.080 --> 0:39:56.920
<v Speaker 1>both flashes and shocks and they just weren't linked the

0:39:57.320 --> 0:39:59.400
<v Speaker 1>same way they were in the in the test group,

0:40:00.040 --> 0:40:03.120
<v Speaker 1>and they apparently didn't do that. And so Rilling seems

0:40:03.160 --> 0:40:07.759
<v Speaker 1>to see this as characteristic of McConnell's career as a whole. Uh.

0:40:07.800 --> 0:40:11.759
<v Speaker 1>To quote from him in a summary passage, quote, McConnell,

0:40:11.920 --> 0:40:15.760
<v Speaker 1>an innovator, raced from one exciting phenomenon to the next

0:40:15.880 --> 0:40:21.279
<v Speaker 1>without comprehensive experimental analysis or adequate controls. McConnell's controls were

0:40:21.320 --> 0:40:25.920
<v Speaker 1>often developed as a response to his critics. McConnell's students

0:40:26.000 --> 0:40:29.280
<v Speaker 1>and other scientists were left to the task of cleaning

0:40:29.360 --> 0:40:33.320
<v Speaker 1>up after McConnell by adding the control groups that he omitted.

0:40:33.840 --> 0:40:35.440
<v Speaker 1>And I think it's easy to see how this kind

0:40:35.440 --> 0:40:39.080
<v Speaker 1>of thing can be at at the same time very

0:40:39.200 --> 0:40:43.240
<v Speaker 1>uh winning and exciting, especially to maybe the general public

0:40:43.320 --> 0:40:46.600
<v Speaker 1>and you know, publications writing about his exciting and strange

0:40:46.640 --> 0:40:50.840
<v Speaker 1>and counterintuitive new research, but also really irritating to appears

0:40:50.840 --> 0:40:54.800
<v Speaker 1>in the field. If you're vaulting from one flashy, controversial,

0:40:54.840 --> 0:40:58.200
<v Speaker 1>exciting discovery to another without taking the time to slow

0:40:58.280 --> 0:41:01.839
<v Speaker 1>down and be sure you're on firm ground after each stop, right,

0:41:01.880 --> 0:41:04.600
<v Speaker 1>because the ideal process. If the study comes out and

0:41:04.640 --> 0:41:07.360
<v Speaker 1>there's some sort of problem with it, than than you know,

0:41:07.400 --> 0:41:09.960
<v Speaker 1>the others in the field chime in. There's a sort

0:41:10.000 --> 0:41:12.680
<v Speaker 1>of amount of course correction that takes place. You go

0:41:12.760 --> 0:41:14.839
<v Speaker 1>back to the drawing board, try to figure out how

0:41:14.880 --> 0:41:17.480
<v Speaker 1>you went wrong. Yeah, may yeah, maybe take a complete

0:41:17.480 --> 0:41:20.840
<v Speaker 1>step or two backwards. You don't just keep going along

0:41:20.840 --> 0:41:23.319
<v Speaker 1>this line because you know that there is gold on

0:41:23.360 --> 0:41:24.960
<v Speaker 1>the other end. But at the same time, I mean,

0:41:25.000 --> 0:41:27.879
<v Speaker 1>you can totally understand the temptation to do it that way.

0:41:28.080 --> 0:41:30.480
<v Speaker 1>It sounds so much more exciting and than trying to

0:41:30.600 --> 0:41:34.399
<v Speaker 1>buckle down and be super sure and super rigorous about

0:41:34.480 --> 0:41:37.600
<v Speaker 1>what you think you already proved. Well. In this we

0:41:37.680 --> 0:41:40.440
<v Speaker 1>get into something we've discussed them the show before about

0:41:40.440 --> 0:41:43.239
<v Speaker 1>just the nature of scientific inquiry. Like it's one of

0:41:43.280 --> 0:41:45.640
<v Speaker 1>these things that in some ways it is very much

0:41:46.080 --> 0:41:49.080
<v Speaker 1>like how the human mind works and how humans have

0:41:49.200 --> 0:41:54.040
<v Speaker 1>always solved problems. You can find, you know, examples of

0:41:54.040 --> 0:41:59.319
<v Speaker 1>what is essentially scientific inquiry, certainly in in in prehistoric

0:41:59.440 --> 0:42:02.279
<v Speaker 1>people's But at the same time, there are aspects of

0:42:02.360 --> 0:42:07.080
<v Speaker 1>scientific inquiry that defy, uh, what it is to be

0:42:07.080 --> 0:42:11.240
<v Speaker 1>a human problem solver that that that perfect the method

0:42:11.280 --> 0:42:13.880
<v Speaker 1>in ways that don't make sense just within the confines

0:42:13.920 --> 0:42:17.000
<v Speaker 1>of you know, you know, minute to minute human experience exactly.

0:42:17.120 --> 0:42:21.520
<v Speaker 1>Trial and error comes naturally. But we're way too prone

0:42:21.600 --> 0:42:25.160
<v Speaker 1>to rely on heuristics, you know, to to use our

0:42:25.200 --> 0:42:28.200
<v Speaker 1>sort of standard day to day trial and error judgment

0:42:28.560 --> 0:42:32.600
<v Speaker 1>for real scientific investigation, because usually we only need one

0:42:32.760 --> 0:42:35.640
<v Speaker 1>or two examples of something going right for us to

0:42:35.760 --> 0:42:38.799
<v Speaker 1>derive a rule from it. And one or two examples

0:42:38.880 --> 0:42:42.000
<v Speaker 1>is not you know, that's still an anecdote scientifically. I

0:42:42.040 --> 0:42:45.320
<v Speaker 1>here's an example from my my life as a parent.

0:42:45.840 --> 0:42:49.719
<v Speaker 1>Um My son at an early age was enthralled by

0:42:49.760 --> 0:42:54.359
<v Speaker 1>claw machines like pizza parlors and um and whatnot. And

0:42:54.520 --> 0:42:57.360
<v Speaker 1>so the first time I let him try it, I said, Okay,

0:42:57.400 --> 0:42:59.799
<v Speaker 1>here's a quarter, you can try it. And I was thinking, oh,

0:43:00.080 --> 0:43:01.839
<v Speaker 1>he'll learn a good lesson. You know, you won't pick

0:43:01.840 --> 0:43:03.440
<v Speaker 1>anything up with the claws, and I'll see this is

0:43:03.440 --> 0:43:07.360
<v Speaker 1>a tricky machine made exclusively to take his money by

0:43:07.400 --> 0:43:10.120
<v Speaker 1>tempting when with the idea that he'll win a cheap prize.

0:43:10.480 --> 0:43:13.200
<v Speaker 1>And then he wins a cheap prize the first time, right,

0:43:13.239 --> 0:43:16.960
<v Speaker 1>So I instantly set the wrong lesson. And then there

0:43:17.000 --> 0:43:20.399
<v Speaker 1>was another case like shortly thereafter, or maybe a little

0:43:20.400 --> 0:43:25.879
<v Speaker 1>mong later, but he had some credits at some sort

0:43:25.880 --> 0:43:28.879
<v Speaker 1>of parlor as part of a children's birthday party. Did

0:43:28.920 --> 0:43:31.160
<v Speaker 1>it again, won a prize, and so now it's ruined

0:43:31.200 --> 0:43:33.520
<v Speaker 1>like to the two prizes makes a rule of that

0:43:33.600 --> 0:43:36.799
<v Speaker 1>claw machines are where you get cheap toys, and the

0:43:36.840 --> 0:43:39.279
<v Speaker 1>trickery is you know, somewhat lost on him at this

0:43:39.719 --> 0:43:42.279
<v Speaker 1>at this point anyway, Oh no, I mean that kind

0:43:42.320 --> 0:43:45.800
<v Speaker 1>of learning. I've actually wondered before if that could feature

0:43:45.840 --> 0:43:48.399
<v Speaker 1>into and maybe as far as we know, it already does,

0:43:48.440 --> 0:43:51.320
<v Speaker 1>but could in the future feature into a a more

0:43:51.360 --> 0:43:55.800
<v Speaker 1>insidious type of slot machine. It's a more perfect gambling

0:43:55.840 --> 0:43:59.399
<v Speaker 1>addiction creator and money extractor. And what how it would

0:43:59.400 --> 0:44:01.360
<v Speaker 1>simply work is it's got a camera on there with

0:44:01.440 --> 0:44:05.400
<v Speaker 1>facial recognition, and it can recognize if you've played a

0:44:05.440 --> 0:44:08.760
<v Speaker 1>slot machine in this casino before, and if you haven't

0:44:08.960 --> 0:44:11.719
<v Speaker 1>it's and it's your first time. It gives you a

0:44:11.760 --> 0:44:14.360
<v Speaker 1>small payout on your first go. Yeah, I give you

0:44:14.400 --> 0:44:18.000
<v Speaker 1>that that that that first time user beginner luck, but

0:44:18.120 --> 0:44:21.560
<v Speaker 1>also give you false expectations about what's playing a slot

0:44:21.560 --> 0:44:24.160
<v Speaker 1>machine is all about exactly. But I hope I didn't

0:44:24.160 --> 0:44:28.080
<v Speaker 1>just give ideas to some really insidious designer there, right,

0:44:28.120 --> 0:44:31.080
<v Speaker 1>because to be sure to be clear, and we certainly

0:44:31.120 --> 0:44:33.360
<v Speaker 1>did a couple of episodes and slot machines in the past.

0:44:33.640 --> 0:44:35.800
<v Speaker 1>A slot machine's purpose is to take your money, and

0:44:35.840 --> 0:44:39.360
<v Speaker 1>the slot machine playing experience is the loss of money. Yeah,

0:44:39.360 --> 0:44:42.520
<v Speaker 1>the slot machine is not designed to help you win big.

0:44:42.920 --> 0:44:45.040
<v Speaker 1>If you want to play them, you should understand that

0:44:45.120 --> 0:44:48.200
<v Speaker 1>you are paying for an entertaining experience and that's the

0:44:48.200 --> 0:44:50.320
<v Speaker 1>best case scenario. All right, we got we got a

0:44:50.360 --> 0:44:52.840
<v Speaker 1>little off topic there, but it's just as well because

0:44:53.040 --> 0:44:56.919
<v Speaker 1>we've kind of hit our time for this part of

0:44:56.960 --> 0:44:59.560
<v Speaker 1>the inquiry. We're gonna be back in the next episode

0:44:59.560 --> 0:45:03.440
<v Speaker 1>to continue you this discussion of planarians to what extent

0:45:03.920 --> 0:45:07.040
<v Speaker 1>can they can they learn? But also we're going to

0:45:07.080 --> 0:45:10.160
<v Speaker 1>get into this other area about the absorption of another

0:45:10.360 --> 0:45:15.360
<v Speaker 1>worm's memory. Is it possible, uh, through cannibalism? Through cannibalism,

0:45:15.680 --> 0:45:18.759
<v Speaker 1>And then how does McConnell get into trouble based on

0:45:19.040 --> 0:45:21.399
<v Speaker 1>his reported findings, and then where do we go from

0:45:21.440 --> 0:45:25.840
<v Speaker 1>here in the modern age? In the meantime, if you

0:45:25.840 --> 0:45:27.799
<v Speaker 1>want to check out other episodes of Stuff to Blow

0:45:27.800 --> 0:45:29.480
<v Speaker 1>your Mind. Heading over to Stuff to Blow your Mind

0:45:29.480 --> 0:45:31.600
<v Speaker 1>dot com. That is the mothership. That's where you'll find

0:45:31.640 --> 0:45:34.920
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0:45:34.960 --> 0:45:37.800
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0:45:37.840 --> 0:45:40.920
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<v Speaker 1>you leave a nice review, leave us some stars and

0:45:43.719 --> 0:45:46.400
<v Speaker 1>or a nice comment, because this helps us out in

0:45:46.400 --> 0:45:48.399
<v Speaker 1>the long run. If you want to check out other

0:45:48.440 --> 0:45:51.320
<v Speaker 1>shows that were involved in First of all, there's Invention.

0:45:51.480 --> 0:45:54.640
<v Speaker 1>We've mentioned that one before on the show already, and uh,

0:45:54.840 --> 0:45:57.680
<v Speaker 1>this is a journey through human techno history. Find it

0:45:57.719 --> 0:46:00.719
<v Speaker 1>an Invention pod dot com or wherever you get your podcasts.

0:46:01.360 --> 0:46:04.279
<v Speaker 1>We've mentioned the second oil age that is out as well,

0:46:04.280 --> 0:46:06.960
<v Speaker 1>if you want to a short form of fiction horror

0:46:07.000 --> 0:46:11.440
<v Speaker 1>fiction exploration throughout your holidays. Oh and I should also

0:46:11.520 --> 0:46:13.799
<v Speaker 1>note if you were interested in Stuff to Blow your

0:46:13.840 --> 0:46:17.240
<v Speaker 1>Mind merchandise, we still have the old T shirt store

0:46:18.000 --> 0:46:20.239
<v Speaker 1>and I am to understand that there is going to

0:46:20.320 --> 0:46:23.120
<v Speaker 1>be a sale of some sort coming up. Uh, you

0:46:23.160 --> 0:46:25.200
<v Speaker 1>know how it is you get around Thanksgiving. There are

0:46:25.239 --> 0:46:28.440
<v Speaker 1>all these sales. The same will be true of our

0:46:28.480 --> 0:46:30.719
<v Speaker 1>T shirt store. You can find some old favorites, like

0:46:30.760 --> 0:46:34.000
<v Speaker 1>our the squirrels are not what they seem, uh the

0:46:34.040 --> 0:46:39.240
<v Speaker 1>Scugs shirt. Also, of course, the the Great Basilisk shirt

0:46:39.320 --> 0:46:41.560
<v Speaker 1>was a big hit to the sphere Catastrophee and it's

0:46:41.560 --> 0:46:44.160
<v Speaker 1>one of my favorites as well as some standard logo stuff.

0:46:44.200 --> 0:46:45.719
<v Speaker 1>And I believe there's gonna be a new shirt in

0:46:45.760 --> 0:46:48.240
<v Speaker 1>the store as well, so that's gonna be worth checking

0:46:48.239 --> 0:46:52.239
<v Speaker 1>out definitely by all the merch uh huge thanks as

0:46:52.239 --> 0:46:56.400
<v Speaker 1>always to our excellent audio producer Seth Nicholas Johnson. If

0:46:56.440 --> 0:46:57.799
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0:46:57.920 --> 0:47:01.480
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0:47:01.640 --> 0:47:04.160
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0:47:04.360 --> 0:47:15.400
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