Robert Burton's "Skeptic's Guide to the Mind" (BSP 96)

In On Being Certain: Believing You Are Right Even When You're Not, Robert Burton showed that the feeling of certainty, which is something we all experience, has its origin in brain processes that are both unconscious and inaccessible to consciousness . Now in his new book, A Skeptic's Guide to the Mind: What Neuroscience Can and Cannot Tell Us About Ourselves, he extends these ideas to other mental sensations such as our feeling of agency and our sense of causation.  The idea that much of what our brain does is not accessible to our conscious awareness is NOT new, but Dr. Burton considers the implications for our understanding of the MIND.

When we talked recently (BSP 96), Dr. Burton explained that his new book has two main parts.  In the early chapters, he extends the principles he developed in On Being Certain to other mental sensations. We tend to take things like our feeling of certainty, agency, and causation for granted, but he points out that these are generated in parts of the brain that we can neither access or control.  What makes A Skeptic's Guide to the Mind stand out is that Burton then explores the implications of this reality. He argues that while we can become ever more knowledgeable about how our brain works, the MIND, which is something that we each experience subjectively, is much more elusive.

The fact that we are trying to study the MIND with the MIND has inherent limitations and I think that Dr. Burton is right when he says our response should be HUMILITY.

References:

Related Episodes:

  • BSP 42: A discussion of On Being Certain
  • BSP 43: Interview with Robert Burton about On Being Certain
  • BSP 67: Interview with Thomas Metzinger, author of The Ego Tunnel  
  • BSP 85: Interview with Sebastian Seung, author of Connectome.

Neuroscience Highlights for 2012 (BSP 92)

The Brain Science Podcast recently passed 4 million downloads and it remains entrenched at or near the top of the iTunes rankings for Science and Medicine. So now it's time for our 6th Annual Review Episode. The purpose of this year-ending podcast is to review some of the year's highlights and key ideas. As I reviewed the transcripts of this year's episodes, I was struck by the fact that although each episode stands alone, they also inform one another. One unifying theme was the importance of taking an evolutionary approach to understanding how the human brain generates complex features like mind and consciousness.

Interviews have become an outstanding feature of the Brain Science Podcast. This year I interviewed 10 scientist, including five who have appeared in past podcasts.

Scientists Interviewed in 2012:

#Indicates returning guest. See Guest List for previous episode.

*See the Bibliography page for books featured on the Brain Science Podcast.

In addition to discussing the books by these guests, I also reviewed Who's in Charge?: Free Will and the Science of the Brainby Michael S. Gazzaniga, and Self Comes to Mind: Constructing the Conscious Brainby Antonio Damasio.

Related Episodes: 

  • BSP 32: Brief Introduction to brain anatomy.
  • BSP 47: Basics of brain evolution.
  • BSP 57: Chris Frith, author of Making up the Mind: How the Brain Creates Our Mental World.
  • BSP 67: Thomas Metzinger, author of The Ego Tunnel: The Science of the Mind and the Myth of the Self.

Announcements:

  • Pschologists can now earn CEUs for listening to selected episodes of the Brain Science Podcast.
  • I am closing down the website SCIENCEPODCASTERS.ORG, which I founded back in2008. If you are looking for more high quality science podcasts I suggest the NSF-funded Science 360 Radio.

Ways to Support the BSP:

Tell me what you think:

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"Mind in Life" with Evan Thompson (BSP 89)

Evan Thompson, PhD

Embodied Cognition is a movement within cognitive science that argues that the mind is inseparable from the fact that the brain is embedded in a physical body. This means that everything that the brain does, from the simplest perception to complex decision-making, relies on the interaction of the body with its environment.  Evan Thompson's book, Mind in Life: Biology, Phenomenology, and the Sciences of Mind, is an in-depth look at what he calls the "enactive" approach to embodied cognition. The enactive approach was pioneered by Thompson's mentor Francisco Varela, and it emphasizes the importance of the body's active engagement with its environment.

In a recent interview (BSP 89) I talked with Thompson about some of the key ideas in Mind in Life. Unlike most episodes of the Brain Science Podcast, this is not really a stand-alone episode. It is part of my ongoing exploration of both embodied cognition and the controversial topic of emergence. It is also intended as a follow-up to my recent interview with Terrence Deacon.

Buy Psychology CEU's for this episode.

References:

Related Episodes: 

  • BSP 5: A bried introduction to philosphy of mind
  • BSP 25: Embodied Intelligence with Rolf Pfeifer
  • BSP 36: Art Glenberg on Embodied Cognition
  • BSP 53: Discussion of Did My Neurons Make Me Do It? (emergence and free will)
  • BSP 62: Warren Brown, co-author of Did My Neurons Make Me Do It?
  • BSP 73: Lawrence Shapiro, author of Embodied Cognition.
  • Books and Ideas #47: Terrence Deacon, author of Incomplete Nature.

Announcements:

  • Continuing education credit is now available for selected episodes of the Brain Science Podcast. Click here to learn more.
  • I will be in Philadelphia, PA October 16-21 to attend the annual meeting of the American Academy of Family Physicians. Please contact me if you would like to get together.
  • My eBook Are You Sure? The Unconscious Origins of Certainty is on sale for only $2.99. Please post your review.
  • Next month's Brain Science Podcast will be a discussion of Self Comes to Mind: Constructing the Conscious Brain by Antonio Damasio. Self Comes to Mind is also available from our sponsor Audible.com.
  • Please visit the Brain Science Podcast on Facebook or Google+, or join the BSP Discusion Forum at Goodreads.com.
  • Never miss an episode of the Brain Science Podcast!  Sign up for the Newsletter.
  • Send me (Dr. Campbell) email at gincampbell at mac dot com or follow me on Twitter (@docartemis).

CEUs for Psychologists

"Mind and Brain" with William Uttal (BSP 83)

William Uttal, PhD

There is nothing more exciting than the mind/brain problem" according to Dr. William Uttal, author of Mind and Brain: A Critical Appraisal of Cognitive Neuroscience.  In the latest episode of the Brain Science Podcast  (BSP 83) I talked with Dr. Uttal about why he feels that brain imaging can not solve this mystery.

First, there is the problem that brain imaging represents the wrong level of analysis because every spot you see on a brain scan actaully represents thousands of neurons.  This means that the activity and interaction between individual neurons has been lost. Then there is the problem of reproducibility, with divergent results between studies.

The evidence is accumulating that "much of the brain responds to any stimulus, and every area of the brain participates in multiple functions."  This means that asking where a given function occurs may be the wrong question.

BSP 83 represents an on-going discussion of these issues, so I have included links to related episodes in the show notes. 

References: 

Related Podcasts:  

Reminders:

Send me feedback at gincampbell at mac dot.com.

How Mind Emerges from Brain (BSP 82)

In his latest book, Who's in Charge?: Free Will and the Science of the Brain, respected neuroscientist, Michael S. Gazzaniga, explores how the discoveries of neuroscience impact how we see ourselves as human beings.  After providing a brief review of 20th century neuroscience, and even some of the work from the past decade, Dr. Gazzaniga concludes that nothing neuroscience has discovered changes the fact that "we are personally responsible agents and are to be held accountable for our actions."

Gazzaniga's position contrasts with those who think that recent discoveries show that the brain creates the mind in solely "upwardly causal" way, and who argue that since much of what our brain does is outside our conscious awareness or control, we should not be held responsible for our actions.  Who's in Charge?: Free Will and the Science of the Brain presents what I think is a convincing argument against this common position.

In the latest episode of the Brain Science Podcast (BSP 82) I present a detailed discussion of Dr. Gazzaniga's book.

References:

Related Episodes:

  • Links to episodes of the Brain Science Podcast that are mentioned in BSP 82.
  • BSP 81: Interview with Patricia Churchland about the brain and morality.
  • BSP 53: Discussion of Did My Neurons Make Me Do It?: Philosophical and Neurobiological Perspectives on Moral Responsibility and Free Will by Nancey Murphy, Warren S. Brown.  (Also BSP 62)
  • BSP 35: Discussion of Mirror Neurons.
  • BSP 66: For more on scrub jays.
  • BSP 3: Memory and the use of animal models.
  • BSP 38: Interview with Jeff Hawkins.
  • BSP 47: Brain Evolution.
  • BSP 74: "Small world architecture" in brain networks (Olaf Sporns).
  • BSP 75: Interview with David Eagleman (arguments for legal reform).
  • BSP 76: "Choking" with Dr. Sian Beilock.
  • BSP 56: Interview with Eve Marder (implications of muliple realizability in neuronal circuits).

Announcements:

Patricia Churchland on Neuroscience and Morality (BSP 81)

Patricia Churchland (photo by Nines Minquez)

BSP 81 marks the return of philosopher Patricia Churchland, who I first interviewed back in Episode 55.  Our recent conversation focuses on her latest book, Braintrust: What Neuroscience Tells Us about Morality.  We discuss the historical background and contrast Churchland's approach to that of Sam Harris in The Moral Landscape.  Then Professor Churchland discusses how recent discoveries in neuroscience are shedding light on the evolutionary origins of morality.

It's a fascinating conversation that you won't want to miss. 

References:

Links: 

Announcements:

Cognitive Dissonance (BSP Extra)

I am putting Episode 43 of Books and Ideas into the Brain Science Podcast feed because it should be of interest to BSP fans. This episode is an interview with psychologist Carol Tavris.

We talk about the relationship between psychology and neuroscience as well as cognitive dissonance, which is the subject of Dr. Tavris's recent book Mistakes Were Made (But Not by Me): Why We Justify Foolish Beliefs, Bad Decisions, and Hurtful Acts.

Post your comments in the thread on the BSP Discussion Forum in Goodreads or send me feedback at gincampbell at mac dot com.

"Why Neuroscience Matters"

On May 11, 2011 I gave a talk entitled "Why Neuroscience Matters" at the London Skeptics in the Pub.  Episode 42 of Books and Ideas is an edited version of that talk, including the lively Q and A with the audience.

References

From the Brain Science Podcast

Announcements:

  • Dr. Campbell will be a speaker at The Amazing Meeting 9, which is coming up in Las Vegas, Nevada July 14-17.

Please send your feedback to Dr. Campbell at gincampbel at mac dot com, or post a comment on the Facebook Fan Page.

Don't forget to sign up for Ginger Campbell's Newsletter so you can get show notes for every podcast.

Embodied Cognition with Lawrence Shapiro (BSP 73)

Lawrence Shapiro

In his new book, Embodied Cognition, Dr. Lawrence Shapiro provides a balanced introduction to embodied cognition's attempts to challenge standard cognitive science.  His interview in Episode 73 of the Brain Science Podcast is a discussion of a few of his book's key ideas. It also continues our ongoing exploration of the role of embodiment. 

Related Episodes:

  • BSP 25: Embodied Artificial Intelligence with Dr. Rolf Pfeifer.
  • BSP 36: Introduction to Embodied Cognition with Dr. Art Glenberg.
  • BSP 58: "Extended Mind" with philosopher Alva Noë.
  • BSP 66: Computational cognitive science with Dr. Randy Gallistel.

Some scientists mentioned in this episode:

References:

Annoucements:

Send feed back to Dr. Campbell at gincampbell at mac dot com or leave voice mail at 205-202-0663.

Celebrating 4 Years of the Brain Science Podcast (BSP 71)

The latest episode of the Brain Science Podcast (BSP 71) is our 4th annual review episode.  As usual, I review highlights from this year's interviews, but this year I added a new feature: my personal reflections on how the Brain Science Podcast has impacted my life.  This episode also contains a special announcement for UK listeners.

Major Topics from Season 4:

  • Emotions with Jaak Panksepp (BSP 65).
  • Memory with Randy Gallistel (BSP 66).
  • Consciousness with Thomas Metzinger (BSP 67).
  • Alzheimer's Disease with Peter Whitehouse (BSP 68 and Books and Ideas 36).
  • Glia Cells with R. Douglas Fields (BSP 69).
  • Pop Psychology Myths with Scott Lilienfeld (BSP 70).

References:

Announcements:

  • The Brain Science Podcast app is now available for both iPhone and ANDROID (NEW!)
  • Please share your thoughts in our new Guest Book.
  • Be sure to subscribe to my Books and Ideas podcast. The next episode will come out in December.
  • The next episode of the Brain Science Podcast will come out in January 2010. 
  • Sign up for our Newsletter so that you won't miss any episodes.

 

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Memory: Challenging Current Theories with Randy Gallistel, PhD (BSP 66)

Episode 66 of the Brain Science Podcast is an interview with Randy Gallistel, PhD, Co-Director of the Rutgers Center for Cognitive Science and co-author (with Adam Philip King) of Memory and the Computational Brain: Why Cognitive Science Will Transform Neuroscience.

We discuss why read/write memory is an essential element of computation, with an emphasis on the animal experiments that support the claim that brains must possess read/write memory.  This is significant because current models, such as neural nets, DO NOT incorporate read/write memory in their assumptions about how brains work.  It is not necessary to have any background in information theory or computation to appreciate the experiments that are discussed in this episode.

Episode 3 and Episode 12 of the Brain Science Podcast  provide  background information for this episode.

Premium Version available (with extra content)

References and Links:

Announcements:

Send feedback to gincampbell at mac dot com or leave voice mail at 205-202-0663.

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"SuperSense": Bruce Hood on Believing the Unbelievable

Episode 34 of Books and Ideas  is an interview with Bruce M Hood, author of SuperSense: Why We Believe in the Unbelievable .

Dr. Hood is a developmental psychologist with a long-standing interest in why people believe weird things.  In SuperSense, he argues that innate cognitive structures (how we think without being taught) give people a natural tendency toward belief in the supernatural.  Our intuitive sense of how the world works is often at odds with the findings of modern science.

In this interview we discuss the evidence for these conclusions and their implications.

 

If you are subscribed to the Brain Science Podcast you should receive this as an extra episode.

Click here for detailed show notes and to learn more about Books and Ideas.

How our Brain Creates Our World with Chris Frith, PhD (BSP 57)

frith

Episode 57 of the Brain Science Podcast is an interview with neuropsychologist, Dr. Chris Frith, author of Making up the Mind: How the Brain Creates Our Mental World.   Our brain processes information about the world outside us (via our senses) in the same way that it processes information from within our bodies and from our own mental world.  In this interview.  Dr. Frith and I explore the implications from recent discoveries about how our brain generates our mental world.

Useful Links:

  • Necker cube: a visual illusion that shows that some visual processing can not be changed by top-down feedback.

Selected References:*

Bayes, T (1763). An essay toward solving a problem in the doctrine of chance. Philosophical Transactions of the Royal Society of London, 53, 470-418.

Blakemore, SJ, Wolpert DM, and Frith, CD (1990) Central Cancellation of self produced tickle sensation. Nature Neuroscience, 1(7), 635-640.

Botvinick, M and Cohen, J (1998)  Rubber hands "feel" touch that the eyes see. Nature, 391(6669), 756.

Kilner, JM, Paulignan, Y,  and Blakemore, SJ, (2003) An interference effect of observed biological movement on action.Current Biology, 13(6), 522-525.

Rizzolatti, G and Craighero, L (2004). The mirror-neuron system. Annual Review of Neuroscience, 27, 169-192.

Wicker, B, Keysers, C, Plaily,J, Royet, JP, Galese, V, and Rizzolatti, G (2003).  Both of us disgusted in My insula: The common neural basis of seeing and feeling disgust.Neuron. 40(3), 655-664.

Wegner, D (2003). The Illusion of Conscious Will, MIT Press.

Wegner, DM, Fuller, VA and Sparrow, B. (2003)  Clever hands: Uncontrolled intelligence in facilitated communication. Journal of Personal Social Psychology, 85(1), 5-19.

*These references are from Making up the Mind: How the Brain Creates Our Mental World by Chris Frith.

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"On Being Certain": Interview with Robert Burton, MD (BSP 43)

Robert A Burton, MD

Previous Episodes of the Brain Science Podcast:

  • Episode 42: Part 1 of our discussion of On Being Certain.
  • Episode 13: Unconscious Decisions-featuring Blink, by Malcom Gladwel.l
  • Episode 15: Interview with Read Montague about unconscious decisions.

Other scientists/writers mentioned in this episode:

  • Benjamin Libet: important experiments showing that unconscious signals precede our awareness of deciding to act.

Other terms mentioned in the interview:

Cotard's Syndrome: when the patient believes they do not exist or that they are dead

Cognitive dissonance: a mismatch between what one believes and what the evidence supports

 

Donations and Subscriptions are appreciated

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Interview with Jeff Hawkins "On Intelligence" (BSP 38)

Jeff Hawkins

Episode 38 of the Brain Science Podcast is an interview with Jeff Hawkins, author of On Intelligence.  Hawkins is well-known for founding Palm Computing and Handspring.  He invented the Grafitti handwriting recognition system and helped develop the Palm Trio SmartPhone.  Since he published his bestseller On Intelligence, he has devoted his work to his passion for neuroscience.  His current company, Numenta, is developing software that models the hierarchical structure of the neocortex.  In this interview we talk about the ideas in Hawkins book and how he is applying them to develop a computer model of cortical function.  This is a follow-up to Episode 2, which first aired in December of 2006.

Links and References:

Jeff Hawkins: Wikipedia entry

  • Dileep George: co-founder of Numenta and principal architect of the first prototype implementing the hierarchical temporal memory system (HTM) patterned after the human neocortex.

Vernon Montcastle: pioneer who proposed that all parts of the brain's cortex work the same way.

  • Vernon Mountcastle (1978), "An Organizing Principle for Cerebral Function: The Unit Model and the Distributed System", The Mindful Brain (Gerald M. Edelman and Vernon B. Mountcastle, eds.) Cambridge, MA: MIT Press (Please let me know if you find this paper on-line!)

Redwood Institute for Theoretical Neuroscience (UC-Berkeley) founded by Jeff Hawkins.

Numenta: company website includes extensive educational information about hierarchical temporal memory system (HTM).  The company's focus is practical implementation of HTM Theory.

Donations and Subscriptions are appreciated

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A Closer Look at Mirror Neurons (BSP 35)

Mirrors in the Brain

Brain Science Podcast #35 is a discussion of Mirrors in the Brain: How Our Minds Share Actions, Emotions, and Experience, by Giacomo Rizzolatti and Corrado Sinigaglia.  Mirror neurons were discovered in Rizzolatti's lab in Parma, Italy, in the early 1990s, and his book is a detailed to discussion of the experimental evidence in both monkeys and humans.  Direct single neuron recordings have been made in monkeys.  The evidence in humans is indirect, since it is based on mainly on neuro-imaging studies like PET scans and fMRI scans.  Even so, mirror neurons appear to be essential to our ability to understand both the actions and emotions of others. 

In this episode, we also explore the evidence that there are other neurons in the motor areas of the brain that have sensory properties and that the areas of the brain traditionally thought to be devoted to sensory functions also contain neurons with motor properties.  Another fascinating discovery is the fact that there are neurons that respond not only to somatosensory inputs (such as being touched) but also to visual or auditory inputs from objects within our peri-personal space.  For background on these body maps, I recommend listening to Episode 21 and Episode 23.  If you are new to the Brain Science Podcast, you may want to listen to those episodes first, because this week's episode is a little more technical than most.

I will be exploring the importance of these discoveries in future episodes.

Links:

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Some Recent Research About Embodied Cognition

There is an ongoing debate on the Brain Science Podcast Discussion Forum about whether the importance of embodiment is an essential obstacle to trying to simulate human cognition with computers.  Meanwhile, the role of embodiment in cognition continues to be a growing area of research.  I enjoyed a recent post on the Scientific American Community website entitled, Thinking with the Body, by Art Glenberg from Arizona State University.  He reviews recent research by Holt and Bellock.  The bottom line is that even when people are involved in verbal tasks, like reading sentences, their comprehension is influenced by their body knowledge of what is being described.

You can read more at Mind Matters: Neuroscience, Psychology, Psychiatry, and More.

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

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.

http://iamyouasheisme.wordpress.com/2008/02/25/the-mind-is-not-a-computer/

Its 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 consciousnes,s while Wider than the Sky introduces some of his theories about how the brain generates consciousness.

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