Review of "Gut Feelings" (BSP 19)

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Show Notes forBrain Science Podcast #19: Gut Feelings

This episode is a discussion of Gut Feelings: The Intelligence of the Unconscious (2007), by Gerd Gigerenzer.

Dr. Gigerenzer argues that unconscious decision-making or intuition is actually based on the use of heuristics(rules of thumb) that can be explored, and even brought into awareness.  In this episode, I discuss his basic arguments with an emphasis on the differences between intuitive reasoning and formal logic.  Then we explore some examples including the application of these ideas to more controversial areas like morality and social instincts.

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.

References

Links of Interest:

Eric Kandel Talks About Memory on Futures in Biotech

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The latest episode of Futures in Biotech (FiB 20) is an interview with Dr. Eric Kandel, who won a Nobel Prize in 2000 for his discoveries about how memory works.  I think you will enjoy listening to Dr. Kandel's interview.

I discussed Dr. Kandel's book, In Search of Memory, in Episode 3 of the Brain Science Podcast.  I also discussed his textbook, Memory: From Mind to Molecules in Episode 12.

For anyone who would like to go back and listen to these episodes, I have provided direct links to the audio files below:

#3: In Search of Memory

#12: Memory: From Mind to Molecules

Author Sharon Begley Talks About Neuroplasticity

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Science writer, Sharon Begley, was interviewed about neuroplasticity. on the August 7 episode of Science Talk, the podcast from Scientific American.

I discussed her book, Train Your Mind, Change Your Brain: How a New Science Reveals Our Extraordinary Potential to Transform Ourselves, on Episode 10 of the Brain Science Podcast.

Listen to Science Talk interview of Sharon Begley

Listen to the Brain Science Podcast #10: Neuroplasticity

You can also find more on neuroplasticity, including links to some of the scientists she mentions in her interview here.

Interview with Elkhonon Goldberg, PhD (BSP 18)

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Episode 18 of the Brain Science Podcast is an interview with Dr. Elkhonon Goldberg, PhD.

Show Notes:

  • I apologize for the uneven sound quality of this episode.  If any one out there has any suggestions, please drop me an email.

  • Dr. Goldberg shared a little bit about the breadth of his work as a neuropsychologist.

  • We talked about his rather unique perspective on the difference between the right and left brain hemispheres.  He explained why he feels that as we get older we move from reliance on the right hemisphere, which he feels is the novelty hemisphere, to a reliance on the left hemisphere, where our lifetime store of patterns enables us to use pattern recognition as a short cut in problem solving.

  • We talked about the importance of constant mental challenge, and Dr. Goldberg gives his advice about how we can keep our brains healthy through out our lives.

Links:

The following are two companies that Dr. Goldberg is working with to provide information to the public and also tools for cognitive enhancement:

  • SharpBrains:  This is a clearing house for information, and they evaluate many of the products currently being offered.

  • HeadStrong Cognitive Fitness:  This Australian company offers a net-based program for cognitive enhancement based on Dr. Goldberg's research.  I am hoping to test their products in the near future.

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.

Some Recent Podcasts Worth Listening To

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I haven't done a very good of posting about other podcasts that are relevant to the Brain Science Podcast, but here are a few you might enjoy: 

The July 27 edition of Science Friday included a discussion of discoveries related to depression and language acquisition.

The July 14 episode of All in The Mind addresses the nature versus nurture question.

The July 13 episode of the Science Magazine Podcast includes recent research on autism, and a discussion of the question of memory suppression.

There is also an interesting discussion of depression on the July 14 episode of the Science Show.

I have mentioned all of these podcasts in the past.  It is interesting that both All in the Mind and the Science Show come from Australia.  These shows are both consistently worthwhile. Transcripts are available on their websites.

The Wisdom of the Aging Brain (BSP 17)

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This week we discuss another book by Elkonon Goldberg, Ph.D.  I highly recommend this book to everyone, because it is an excellent review of many of the topics we have discussed over the last several months including memory, emotion, and neuroplasticity.   In this episode, we continue our discussion of the role of the pre-frontal lobes in intelligence, as well as what happens to our brain as we age.

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.

Show Notes

I want to thank Matthew Lofton for pointing out to me that there is evidence that elephants can recognize themselves in a mirror.  This means I was wrong when I said (in #16) that only humans and some primates can do this. He referred us to "I, Elephant," by Kaspar Mossmanin in the February 2007 issue of Scientific American Mind.  The original article was "Self-recognition in an Asian elephant," by:Plotnik, Joshua M.; de Waal, Frans B. M.; Reiss, Diana. Proceedings of the National Academy of Sciences of the United States of America, 11/7/2006, Vol. 103 Issue 45, p17053-17057.  He posted this information as a comment, but I wanted to bring this to everyone's attention.

Episodes that are referred to in this episode:

Note: You should have no problem listening to Episode #17 first, but I have provided these references for those who want to review or go back for more details.

Definitions used in this episode:

  • Attractor: a cognitive template that enables pattern recognition. An attractor is thought to be a concise set of neurons with strong interactions among themselves. A unique and important quality of attractors is that a broad range of inputs activate the same set of neurons. This is thought to be the mechanism of pattern recognition.

  • Cognitive competence: the ability to relate the old to the new so as to recognize the similarities between a new problem and one that has been previously solved.

  • Cognitive wisdom: an enhanced capacity for problem solving

  • Generic memory: memory for patterns

Brief list of topics discussed in this episode:

  • Review of important ideas about the prefrontal lobes from #16.

  • An hypothesis about the differing roles of the right and left hemispheres.

  • How the brain changes in normal aging.

  • Mechanisms that protect the brain from degenerative changes:

    • Generic memory-why this type of memory is more robust.

    • Pattern expansion-how parts of the cortex expand with use.

    • Effortless experts-why familiar tasks are less demanding.

    • Why vigorous mental activity is important throughout life.

For more links related to Dr. Goldberg's work see the show notes for Episode 16.

Is Free Will a Myth?

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I have posted Episode 12 of Books and Ideas.  It is my response to The Myth of Free Will (2007), which was edited by Cris Evatt.

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

A review of "The Executive Brain" (BSP 16)

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Brain Science Podcast #16 is a discussion of The Executive Brain: Frontal Lobes and the Civilized Mind (2002), by Elkhonon Goldberg.

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.

Show Notes

This episode is an introduction to the role of the pre-frontal lobes in decision-making, and the other "executive" functions of our brain.  The functions of the pre-frontal lobes are not only the keys to what makes us human, but also the keys to our individual personality.

In this episode, using Dr. Goldberg's book, we discuss how the frontal lobes relate to the other structures of the brain.  We also, discuss some ideas about why the left and right sides of the brain differ, as well as several important ways in which the cortex, and especially the pre-frontal lobes differ from some of the older parts of the brain.

We discuss briefly the vulnerability of the frontal lobes to damage and disease, and we consider the implications of frontal lobe dysfunction.  Questions are introduced that will be considered in more detail in future podcasts.

Links:

"Why Choose this Book?" with Read Montague (BSP 15)

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Show Notes

Episode #15 of the Brain Science Podcast is an interview with Dr. Read Montague of the Baylor School of Medicine.  We discuss his recent book, Why Choose this Book? How we Make Decisions (2006).

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 are some of the questions we discussed:

  • What is computational neuroscience?

  • What is the computational theory of the mind (CTOM)?

  • How isthe objection that the CTOM doesn't account for meaning answered ?

  • What about choice and responsibility?

  • Is there room for free will in this model?

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

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.

Unconscious Decisions! (BSP 13)

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Show Notes

The Brain Science Podcast usually focuses on a single book devoted to neuroscience, but Episode 13 begins with a discussion of Malcolm Gladwell's bestseller, Blink: The Power of Thinking Without Thinking, and then explores the ideas from several other sources. The key idea is that we do make some decisions without conscious thought and that neuroscience is discovering how this works.

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.

References:

Consciousness: An Introduction (2003), by Susan Blackmore:  Experiments from pages 38-43, 57-63, and 127-132.
Consciousness Explained  (1992), by Daniel C. Dennett
Freedom Evolves (2003) by Daniel C. Dennett: Quote in episode is from page 223
On Intelligence (2005) by Jeff Hawkins

Other Links for this episode:

Vic Braden
Antonio Damasio

The new Brain Science Podcast Community group on Flickr.com:  Please post your pictures here!

Talking Robots: A podcast About Artificial Intelligence

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Talking Robots from the Laboratory of Intelligent Systems, EPFL, Switzerland Talking Robots "is a podcast featuring interviews with high-profile professionals in robotics and artificial intelligence for an inside view on the science, technology, and business of intelligent robotics"  (description quoted from the website).  The host and project director is Dario Floreano , Director of the School of Engineering at Ecole Polytechnique Fédérale de Lausanne in Lausanne, Switzerland.

Thanks to David Gordan, one of my  Brain Science Podcast  listeners, for letting me know about this really fascinating podcast produced in Switzerland.  I think it will be of interest to those of you interested in the human brain as well people interested in computers and especially artificial intelligence.  I have only listened to a couple of episodes so far, but I have been amazed to learn how far this field has come.

"Memory: From Mind to Molecules" (BSP 12)

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This episode of the Brain Science Podcast is a discussion of memory based on the book, Memory: From Mind to Molecules (2000), by Larry R. Squire, and Eric R. Kandel.

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.

Show Notes

I highly recommend that you get this book for yourself if you want to read the details of the experiments.  The book contains excellent illustrations.

Some of the experimental animals mentioned in this episode include Aplysia (giant sea snails), drosophila (fruit flies), and mice.

Mechanisms of memory formation and storage seem to be shared from the simplest non-vertebrates up through humans.

Types of Memory:  declarative and non-declarative. Non-declarative memory is generally NOT subject to conscious awareness or control.

There are many different types of non-declarative memory including:

Declarative memory, which seems to be unique to animals that have a hippocampus and cerebral cortex, includes short-term (immediate and working memory) and long-term memory.  Much research has been devoted to discovering how and where long-term memory occurs.  The answer may surprise you.

This episode includes a discussion of some of the unanswered questions in memory research.

From Nature: The Idling Brain

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On the May 3rd episode of the Nature Magazine Podcast, the front page story The Idling Brain is featured.  Researchers present evidence that there is a large amount of brain activity going on even while we are asleep or under anesthesia.  This is actually rather surprising, as it was previously assumed that the brain was quiescent during unconsciousness.

The full article is current on the newstand, or you can buy it on line.  You can also get a full transcript of the podcast.  At the very leas,t I recommend subscribing to the Nature Podcast if you haven't already.  This week's episode also includes discussion of some research that might have implications in the future for treating Alzheimer's dementia.

Emotion (BSP 11)

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Emotion: The Science of Sentiment, by Dylan Evans, is the featured book for this episode of the Brain Science Podcast.  Thanks to Kate from the UK for suggesting this book.

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.

Show Notes

This episode is a short introduction to the idea that our emotions are an essential part of our intelligence.

  • We discuss the basic emotions, based on the work of anthropologist Paul Eckman.

  • We learn about culturally-learned emotions, such as "being a wild pig," which is observed among the Gurumba people of New Guinea.

  • Paul Griffiths introduced the idea of "higher cognitive emotions."

  • Emotions seem to exist on a continuum from the highly innate basic emotions to the culturally specific emotions.

  • The work of Joseph Ledoux and Antonio Damasio reveal that our emotions are an important element of normal intelligence.

  • We consider how fear actually follows two pathways in the brain.

  • We consider the role of the limbic system including the amygdala.

  • We consider the relationship between emotions and mood.

  • We consider how mood affects memory and decision making.

  • This includes Robert Zajonc's discovery of the "mere exposure" effect.

  • We briefly consider the question of whether computers could ever display emotions.

Further Reading:

The Feeling of What Happens: Body and Emotion in the Making of Consciousness (2000), by Antonio Damasio.

All in the Mind, Another Excellent Australian Podcast

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I am grateful for the new listeners I have received thanks to the mention of the Brain Science Podcast in the April/May issue of Scientific American Mind (page 22), but I want to take a moment to recommend the other podcast that was listed.

All in the Mind is actually a radio show from ABC Radio National , which I think is Australian Public Radio.  Obviously, they have more resources than I do as an independent podcaster, which means they have lots of diverse interviews.

I think the last two episodes are particularly relevant to recent discussions on the Brain Science Podcast.

Last week they replayed an interview from 2006 with Harvard psychology professor, Jerome Kagan.  Dr. Kagan pioneered discoveries about temperament in children, but he also argues persuasively against seeing temperament as being hardwired.  He advocates the importance of appreciating that who we are is a combination of genetics and experience.  I highly recommend listening to listening to this interview.

This week's episode is entitled, "You are not Your Brain Scan!"  It is a panel discussion from the recent World Congress of Science Journalists, which was held in  Melbourne April 16-20,2007.  The role of functional MRI and other technologies in communicating science to the public is discussed, along with issues like genetics and neuroplasticity.  One unusual feature of these podcasts is that you can get full transcripts of each episode from the website.

Both Sides of the Paranormal Debate?

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Personally, I have very little interest in the paranormal or parapsychology, but I have to commend Alex Tsakiris of the Skeptiko podcast for presenting interviews from both sides of the debate.  Alex clearly does believe that parapsychology is a valid science, but his podcast is surprisingly balanced.  I think it is very valuable to listen to what those with different viewpoints have to say, and there are a surprising number of scientists devoted to trying to find replicable data in the field.

When we consider findings like those that show that meditation leads to measurable changes in the brain, we realize that current mechanistic models may be incomplete.  My focus is on mainstream neuroscience, but I think it is useful to try to be aware of other approaches.  For one thing, it helps us to see more clearly where the holes are and where we need to ask more questions.

Neuroplasticity: A Review of its Discovery (BSP 10)

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In this episode of the Brain Science Podcast we explore the recent research that has established, contrary to long-standing dogma, that our brains our able to change throughout our lives, based on our experience.

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.

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

Show Notes

The reference for this episode is Train Your Mind, Change Your Brain: How a New Science Reveals Our Extraordinary Potential to Transform Ourselves, by Sharon Begley.  This book describes the 2004 meeting between the Dalai Llama and several leading neuroscientists.  To learn more about these meetings, go to the Mind and Life Institute website.  All the studies that I mention in the podcast are referenced in the back of the book.

List of the some of the scientists and their work:

  • Michael Meany- McGill University: He has shown that the way that a mother rat treats her babies determine which genes in the baby's brain are turned on and which are turned off.

  • Fred Gage- the Salk Institute:  His work with lab animals showed that adult brains do change.  (more from Google)

  • Helen Neville-University of Oregon: She has shown that the auditory and visual cortices are rewired in people who are born blind or deaf.

  • Phillip Shaver-UC-Davis: He is a pioneer in attachment theory: how people's sense of emotional security, acquired in childhood, affects their adult behavior, including their response to other ethnic groups and their willingness to help others.

  • Richard Davidson-Wisconsin:  He has done studies showing how the brain is changed by meditation.

  • Edward Taub- University of Alabama in Birmingham:  He helped develop a revolutionary treatment for stroke victims.

  • Jeffery Schwartz-UCLA:  He has used mindfulness meditation to treat obsessive compulsive disorder, showing that meditation can change the brain in beneficial ways.

  • Jon Kabat-Zinn- University of Massachusetts:  He has done many years of work using mindfulness meditation to treat stress related diseases.

  • Michael Merzenich:  Pioneer researcher who also founded FastForward™ and Posit Science™.

More Links of Interest:

I am sure this list is incomplete.  If you have a question or comment about a topic mentioned on the show, leave a comment below, or send me email at brainsciencepodcast@gmail.com.

Review: "The Future of the Brain" (BSP 9)

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Show Notes for Episode 9

This episode is a discussion of The Future of the Brain: The Promise and Perils of Tomorrow's Neuroscience, by British neuroscientist, Steven Rose.  Unlike most episodes of the Brain Science Podcast, the emphasis of this episode is on asking what kind of ethical dilemmas might be posed by our increased knowledge of how the brain works.

Topics discussed:

  • Why the mind is more than the brain.

  • Why the mind is more than genetics and biochemistry.

  • How we still have a long way to go before we can fully understand how the brain-body generates the mind.

  • Problems and dangers of reductionism.

  • Implications for freedom and personal responsibility.

  • Examples from the history of science that demonstrate why these concerns are valid.

  • The "Paradox of Memory."

  • Some email from listeners.

One issue I only mention briefly on the podcast is Rose's attack on evolutionary psychology.  If you are interested in learning more about this, you might want to read the transcript of a debate between Steven Rose and Stephen Pinker, which was held in 1998.  It is on the Edge website, which is an interesting website even though it lacks an RSS feed.

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.

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.