Nature Relaunches its Neuroscience Podcast

I am happy to report that Nature has relaunched its neuroscience podcast under the new name NeuroPod.  If you like the Nature podcast but would rather hear a show devoted to the latest Nature articles on neuroscience, you will want to check this out at http://www.nature.com/neurosci/neuropod.

If you prefer blogs, you might want to check out Action Potential (also from the editors of Nature).  I am not very good at keeping my blogroll up-to-date, but another site worth checking out (suggested to me by Adam Rutherford at Nature) is Mind Hacks.

Consciousness with Christof Koch (BSP 22)

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.

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

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• 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:

• Christof Koch's homepage.

• The Quest for Consciousness: A Neurobiological Approach (2004)

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

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

A review of "The Body Has a Mind of Its Own" (BSP 21)

Featured in this episode: The Body has a Mind of Its Own: How Body Maps in Your Brain Help You Do (Almost) Everything Better (2007), by Sandra Blakeslee and Matthew Blakeslee.  (Also available on from Audible.com)

How to get this episode:

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

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• Buy Transcript for $1.

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SHOW NOTES

Topics:

• Body maps and the role of embodiment.

• Basic ideas about the body maps in the brain.

• Mapping the world around us.

• How body maps differ between species.

• Body schema and body image.

• The role of body maps in disease.

• The role of belief in health and illness.

• How body maps explain non-traditional healing methods and unusual experiences.

• The role of motor imagery in improving motor skills.

• Mirror Neurons and grid neurons in the hippocampus  (see more on Scholarpedia).

• How sensation and emotions come together (the role of the insula).

Scientists mentioned in the podcast:

• Wilder Penfield:  Discovered the maps of the primary sensory and primary motor cortex.

• Sir Henry Head and Gordon Holmes:  British neurologists who first proposed the idea of the body schema in 1911.

• Arthur Craig:  First to study the unique wiring of the insula.

• Antonio Damasio: studies the role of emotion in intelligent decision-making.

• Marco Iacoboni:  Demonstrated the role of the right angular cingulate gyrus in our sense of self versus others.  (Dr. Iacoboni has PDF's available on his site).

Other scientists mentioned in The Body has a Mind of Its Own:

• William Straub: Sports psychologist who demonstrated that students could improve at darts through mental imagery.

• Alvaro Pascual-Leone:  Used 5 finger piano exercise to show changes in motor maps both from actual practice and from imagery.

• Michael Merzenich:  Classic experiments showing changing in motor maps in monkeys.

• Scott Frey:  Using imagery in stroke rehab.

• Jennifer Stevens:  Use of mirror boxes in stroke rehab.

• Edoardo Bisiach:  Theories about spatial awareness and neglect.

• Jamie Ward:  Documented a patient with color-emotion synesthesia as possible explanation for auras.

• Olaf Blanke:  Studies the anterior cingulate gyrus, which map be important in out-of-body experiences.

• Atsushi Iriki:  Has demonstrated how the parietal lobes in monkeys change with tool use.

• Christian Keysters:  Thinks mirror neurons may be a key precursor for the development of abstract thought and language

• Hugo Critchley:  Expert in brain imaging who is interested in the relationship between emotional intelligence and interoception (visceral awareness).

• John Allman:  Studies the role of the frontal insula and anterior cingulate gyrus in intuition (quick decisions).

• Sara Lazar:  Has demonstrated that the right frontal insula and left prefrontal cortex increase in size in experienced meditators.

Note: This list is not exhaustive.  I know I left off VS Ramachandran and several others, but those listed above did work that was addressed, directly or indirectly, in my podcast.

Brain Structures (links include diagrams of the brain):

• Primary Sensory Cortex.

• Primary Motor Cortex.

• Premotor Cortex.

• Frontal Insula.

• Parietal lobe.

• Amygdala.

• Anterior Cingulate Gyrus.

"The Female Brain" with Dr. Louann Brizendine (BSP 20)

Episode 20 of the Brain Science Podcast is an interview with Dr. Louann Brizendine of the Women's Mood and Hormone Clinic at the University of California at San Francisco.   Her book, The Female Brain, was just released in paperback, and it is on the New York Times Bestseller list.

We explore how hormones and neurotransmitters effect our brains, and how these effects are different in men and women.  This episode has interesting stuff for listeners of both sexes.

If you would like to learn more, visit Dr. Brizendine's website at http://louannbrizendine.com.

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.

Review of "Gut Feelings" (BSP 19)

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

• Gut Feelings: The Intelligence of the Unconscious (2007), by Gerd Gigerenzer.

• Blink: The Power of Thinking Without Thinking (2005), by Malcolm Gladwell.

• See also Brain Science Podcast #13: Unconscious Decision Making.

Links of Interest:

• Gerd Gigerenzer: Wikipedia.

• Gerd Gigerenzer:  Home page at the Max Planck Institute for Human Development.

• Jonathan Haidt:  Social psychologist mentioned  in this episode.

Eric Kandel Talks About Memory on Futures in Biotech

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

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)

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

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)

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:

• BSP #10: Neuroplasticity.

• BSP #11: Emotion.

• BSP #12: Memory.

• BSP #16: The Frontal Lobes.

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?

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.

• Download mp3 of B&I 12

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

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

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:

• Phineas Gage-constructor worker who suffered severe frontal lobe injury in 1848.

• Herbert Simon-won 1978 Nobel Prize in economics (short autobiography) He did pioneering work on decision-making.

• Dr. Elkhonon Goldberg:

• His website.

  1. On YouTube.com

  2. Interview from Sharp Brains

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

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)

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)

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

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)

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:

• motor skills

• habituation and sensitization

• classical and operant conditioning

• priming

• perceptual skills

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

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)

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

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.