Embodied Cognition with Art Glenberg (BSP 36)

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Episode 36 of the Brain Science Podcast is an interview with Arthur Glenberg, PhD, about embodied cognition.  Dr. Glenberg recently moved to Arizona State University, after over 30 years at the University of Wisconsin's Laboratory of Embodied Cognition.  His research focuses on the relationship between embodiment and language.  In this interview, we explore the experimental evidence for a theory of language that embraces the concept that our language abilities are actually rooted in our perceptual and motor abilities.  Dr. Glenberg also explains how his work has practical implications in helping children learn how to read.

Since Dr. Glenberg has had a long career as a working research scientist, this interview also provided an opportunity to explore how scientific hypotheses are formed and how experiments are designed to test these hypothesis.  I think this interview will give you a fascinating look into the real world of cognitive psychology.

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  • New of the Brain Science Podcast are always FREE.  All episodes posted after January 1, 2013, are free.  See the individual show notes for links the audio files.

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Links and References:

Arthur Glenberg, PhD

Other scientists mentioned in the Episode:

  • George Lakoff: pioneering linguist.

  • James Gibson: known for his ideas about affordances.William Epstein-emeritus professor at the University of Wisconsin.

  • Joseph Campos: University of California (Berkelely).

  • Amy Needham and Amanda Woodard-experiments with velcro mits and infant cognition.

  • David A Havas: graduate student and co-author with Dr. Glenberg.

  • Mike Kashak: Florida State University.

  • Mike Rinck: German co-author-see paper under Glenberg.

  • Vittorio Gallese, Dept of Neuroscience, University of Parma, Italy (where mirror neurons were discovered): extensive experimental with motor neurons in monkeys.

  • Fritz Stack (Germany): experiments showing that facial experiments affect mood and cognition.

References:

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Exploring Consciousness in the Blogospere

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I am not very good at keeping up with all the great blogs about neuroscience, but I did happen to find two that I thought you might enjoy.  Both Developing Intelligence and Conscious Entities explore both the meaning of consciousness and the relationship between the human brain and computers.

Journey to Perplexity: "The Mind Is Not a Computer"

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The blog, Journey to Perplexity, notes that Gerald Edelman's book, Second Nature: Brain Science and Human Knowledge, offers some valuable insights into why "the mind is not a computer."   I am not sure who writes this blog, but he seems to be writing from a philosophical background.

It has been a while since I read Edelman's book.  Edelman won the Nobel Prize in 1972 for important discoveries about the structure of antibodies, but he has devoted the last several decades to studying neuroscience.  His two most well-known contributions are his theory of so-called 'neural Darwinism,' and his study of the importance of redundancy and feedback loops within the brain.  He has written quite a few books on the subject including, Wider Than the Sky: The Phenomenal Gift of Consciousness (2005).

Second Nature is Edelman's attempt to address some of the philosophical issues about consciousness, while Wider than the Sky introduces some of his theories about how the brain generates consciousness.

Year-end Review for 2007 (BSP 27)

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Episode 27 is a look back on the first 26 episodes of the Brain Science Podcast.

I look back on some of the main topics that we have explored including memory, consciousness, emotions, decision-making, body maps, and plasticity.  Then I talk a little about what I hope to do in the covering year.  This episode is a little more personal than most, and will mainly be of interest to regular listeners.  It includes some ideas about how you can help the Brain Science Podcast grow and prosper.

However, in preparing this episode, I went back over the past year's episodes, and I have prepared a list of all the episodes so far and the main topics.  This should help both new listeners and regulars to find episodes that pertain to particular topics.

How to get this episode:

  • Premium Subscribers now have unlimited access to all old episodes and transcripts.

  • Buy mp3 for $1.

  • Buy Transcript for $1.

  • New episodes of the Brain Science Podcast are always FREE.  All episodes posted after January 1, 2013, are free.  See the individual show notes for links the audio files.

Listen in your Favorite Audio app: Audible, Amazon music, Pandora, Spotify, YouTube and many more.

Consciousness with Christof Koch (BSP 22)

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Brain Science Podcast #22 is an interview with Dr. Christof Koch of Cal Tech, one of the pioneers in the neurobiological study of consciousness.  About two decades ago, when Koch and Francis Crick began looking for what they called the neural correlates of consciousness (NCC), such a quest was considered controversial; but now the field is increasing in popularity.  In our interview, we talked a little about his book,The Quest for Consciousness, as well as his on-going research and his thoughts about what the future might bring.

How to get this episode:

  • Premium Subscribers now have unlimited access to all old episodes and transcripts.

  • Buy mp3 for $1.

  • Buy Transcript for $1.

  • New episodes of the Brain Science Podcast are always FREE.  All episodes posted after January 1, 2013, are free.  See the individual show notes for links the audio files.

Here is a list of some of the topics we discussed:

  • Why Francis Crick was an outstanding mentor and colleague.

  • A Working definition of consciousness.

  • How consciousness relates to awareness.

  • What are neural correlates of consciousness.

  • Why vision is the focus of Koch's research.

  • The search for the "footprints" of consciousness.

  • The role of functional imaging and the use of monkeys.

  • Neurons-"the atoms of perception".

  • Why we need a theory of consciousness.

  • The role of the frontal lobes in consciousness.

  • Is consciousness an emergent property?

  • What about zombies?

  • Why do we need consciousness?

  • Will artificial intelligence become conscious?

  • The hard problem:  how does the brain generate subjective experience  (qualia).

Links:

Update on 2012-05-03 15:42 by Ginger Campbell, MD

Christof Koch returned to the Brain Science Podcast in Episode 84.

Brain Science Podcast's First Six Months (BSP 14)

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Although the first full episode of the Brain Science Podcast appeared on December 15, 2006, I went live with an introductory podcast around December 1, 2006.  (I have deleted episode 0 from the feed).  At any rate, I decided it was time to look back over the first six months and reflect on some of the topics we have covered.

This is one of the shorter episodes, but I hope it will bring some of the key ideas back to mind (and encourage new listeners to go back and get the older episodes).  It will also give you a glimpse of what we will be discussing in the next few months.

As always, I welcome comments and suggestions.

How to get this episode:

  • Premium Subscribers now have unlimited access to all old episodes and transcripts.

  • Buy mp3 for $1

  • Transcripts: BSP 1-14

  • New episodes of the Brain Science Podcast are always FREE.  All episodes posted after January 1, 2013, are free.  See the individual show notes for links the audio files.

Listen in your Favorite Audio app: Audible, Amazon music, Pandora, Spotify, YouTube and many more.

The Sci Phi Show: Interview of David Chalmers about Consciousness

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On the Brain Science Podcast #5 I talked about Consciousness and mentioned that David Chalmers is a proponent of a modern version of dualism and also quite concerned with what he calls the "hard problem;" which is explaining the subjective nature of consciousness, which he has called qualia.  If you would like to hear him explain some of these ideas himself, I suggest you listen to Jason Rennie's interview of David Chalmers on The Sci Phi Show  Outcast #36.

One thing that surprised me in the interview was that he actually defined consciousness as subjective awareness.

I  don't share Chalmers' views on these issues, but I think is a good interview, because Jason always lets his guest speak for themselves.

Why Quantum Mechanics Can't Explain Consciousness

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Quantum mechanics can't explain consciousness, and I am going to explore why.

The reason I bring this up is that many people seem to be worried that the mounting evidence that the brain generates the mind implies that free will can not exist.  Of course, most of us feel strongly that we do have free will.  Various arguments are put forth to "save" free will. (I am not going to tackle the claim that it needs saving in this post.)  One recent approach has been to use the uncertainty inherent in quantum mechanics as a potential location for free will.  John Searle has observed that this only gives us randomness, not free will, but that doesn't seem to reduce the appeal of such an approach.

Today I wish to argue against using quantum mechanics to explain any aspect of consciousness by considering and entirely different point of view.  My argument is simple: I think trying to use quantum mechanics is taking the argument in the wrong direction.

Consciousness is clearly an emergent property.  The latest evidence is that there is no master site of consciousness or control in the brain.  If that is the case looking to the subatomic level is clearly a move in the wrong direction.  It makes as much sense as trying to understand the properties of water by studying hydrogen and oxygen.  Because water emerges from the combination of the two, studying its components tells us little about water.

Consciousness: A Brief Introduction to Philosophy of Mind (BSP 5)

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Show Notes for BSP 5

Until the last few decades the question of consciousness fascinated philosophers, but was considered off-limits to science; but the discoveries of the last few decades have brought consciousness into the realm of neuroscience.  Scientists such as Nobel Prize Winner, Francis Crick, have proposed that the brain has “neural correlates of consciousness.”  (Francis Crick,  Astonishing Hypothesis, 1994.)  This episode is an introduction to the topic.

After considering the definition of consciousness, I introduce some of the classical questions of the philosophy of the mind:

  • The "hard problem" (proposed by David Chalmers):  How does the physical brain create subjective experience.
  • Dualism: Is there some aspect of mind that is not physical?
  • Free will: If the brain creates consciousness, can we still have free will?

I also introduce several famous thought experiments:

  • Mary the color scientist (Frank Jackson,1982).  Chalmers has argued that the subjective qualities of experience, which he calls qualia, can not be explained by what the brain does.
  • What is it like to be a bat?    (Thomas Nagel)  Do qualia exist?
  • The philosopher’s zombie:  Chalmers argues that a robot could exist that looks and acts just like us but that is “dark inside.”
  • John Searle’s Chinese Room:  An argument against what he calls “strong” artificial intelligence."  Listen to John Searle argue against dualism onThe Philosopher's Zone.

Philosopher Daniel Dennett rejects the existence of both qualia and zombies, and argues that the hard problem does not exist.  To me, the interesting question is whether these arguments will be answered or made obsolete by scientific discoveries.

Perhaps the hard problem will disappear.  I consider how the discovery of neurotransmitters has changed our understanding of the role of emotions in consciousness.  We now know that neurotransmitters provide two-way signaling between our brains and the rest of our bodies, producing our experiences of emotions and feelings.  Though there is still a tendency to regard logic as superior to emotion, researchers like Antonio Damasio are showing that emotions play an essential part in decision-making and other aspects of intelligence.

Philosophers are not the only ones unwilling to let go the idea that consciousness is a mystery that can’t be explained; but those philosophers who keep up with the science can help science ask new questions.

How to get this episode:

  • Premium Subscribers now have unlimited access to all old episodes and transcripts.
  • Buy BSP 1-10 (zip file of mp3 files)
  • Transcripts: BSP 1-14
  • New episodes of the Brain Science Podcast are always FREE.  All episodes posted after January 1, 2013, are free.  See the individual show notes for links the audio files.

References:

I will continue to introduce books about consciousness on future podcasts.  Susan Blackmore writes books for general audiences, so I have listed a few of hers below.