Sunday, March 08, 2009

All in the Mind - Dreams: the stuff memories are made of? (Part 2 of 2)

Here is the conclusion to the two-part episode on dreams. Fascinating stuff.

Dreams: the stuff memories are made of? (Part 2 of 2)

Dreams feel meaningful—drawn from a mishmash of content from our waking lives. But it's a hot debate among scientists, who are yet to confirm why we sleep, let alone dream. Neuroscientist Matthew Wilson's extraordinary experiments involve eavesdropping on the sleeping minds of rats. He proposes dreaming is central to how we remember and learn.

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Streaming and downloadable audio published Saturday afternoons after broadcast, and references and links by then too.

Transcripts Wednesdays after broadcast.

Guests

Matthew A Wilson
Scholar, The Picower Institute for Learning and Memory
Professor,
Departments of Brain and Cognitive Sciences and Biology
Investigator, RIKEN-MIT Neuroscience Research Center
Massachusetts Institute of Learning and Memory
http://web.mit.edu/picower/faculty/wilson.html

Edwin M Robertson
Assistant Professor
Beth Israel Deaconess Medical Center
Harvard Medical School
http://research.bidmc.harvard.edu/research/ResearchPIInfo.ASP?Submit=Display&PersonID=589

Further Information

Discuss the show on the All in the Mind blog
Read Natasha Mitchell's blog post about this program, and feel free to leave your comments.

Easy to do - just fill out the Comments form underneath the blog post for this week. You can use a pseudonym, your email address is not published but is needed to prevent spam. You don't need to enter a web address.

Cockroaches - sleep deprivation leads to memory loss (The Science Show, 2009)
Broadcast on The Science Show, ABC Radio National, 2009.
Maia Ten Brink is a senior high school student. She set out to determine the effects of sleep deprivation in cockroaches on memory retention. She taught her roaches to associate smells with tastes as rewards, then deprived them of sleep by movement through shaking. Over 4 days, the tired roaches demonstrated significant memory loss.

Wilson Laboratory website

Radio piece from WBUR takes you inside Wilson's experiments at MIT

Dreams: The Body Alive! (Part 1 of 2)
An interview with psychoanalyst Robert Bosnack on dreams and the idea of embodied cognition. (Broadcast on All in the Mind, ABC Radio National, 2009)

Bionic Brains and Memory: World's First Brain Prosthesis?
Broadcast on All in the Mind, 2003
Is your memory failing? Considered popping in a memory chip? Philosophical fantasies meet the world of the modern 'neural engineer' as All In the Mind ponders a curious future where brains are wired to computers, and silicon neurons replace your own. Scientists have just developed an early silicon model for an artificial hippocampus, a part of the brain so crucial to our sense of self. Its helps us make memories, and is often damaged in those with Alzheimers or after a stroke. But will these silicon recollections be your own?

Nightmares: Scars of the Soul
Broadcast on All in the Mind, ABC Radio National, 2004.

Publications

Title: Firing rate dynamics in the hippocampus induced by trajectory learning
Author: Daoyun Ji and Matthew A Wilson
Publisher: The Journal of Neuroscience, April 30, 2008, 28(18):4679-4689
URL: http://www.jneurosci.org/cgi/content/abstract/28/18/4679

Title: Reverse replay of behavioural sequences in hippocampal place cells during the awake state
Author: David J Foster, Matthew A Wilson
Publisher: Nature 440, 680-683 (30 March 2006)
URL: http://www.nature.com/nature/journal/v440/n7084/abs/nature04587.html

Title: Coordinated memory replay in the visual cortex and hippocampus during sleep
Author: Daoyun Ji & Matthew Wilson
Publisher: Nature Neuroscience 10, 100 - 107 (2007)
URL: http://www.nature.com/neuro/journal/v10/n1/abs/nn1825.html

Title: Inducing motor skill improvements with a declarative task.
Author: R Brown & E.M Robertson
Publisher: Nature Neuroscience 10, 148-149, (2007)
URL: http://www.nature.com/neuro/journal/v10/n2/abs/nn1836.html

Title: Off-line processing: reciprocal interactions between declarative and procedural memories.
Author: R.M Brown, & E.M Robertson,
Publisher: Journal of Neuroscience 27, 10468-10475. (2007)
URL: http://www.jneurosci.org/cgi/content/abstract/27/39/10468

Title: Off-line learning of motor skill memory: a double dissociation of goal and movement.
Author: Cohen, D.A., Pascual-Leone, A., Press, D.Z., Robertson, E.M.
Publisher: Proceedings of the National Academy of Sciences 102, 18237-182341 (2005)
URL: http://www.pnas.org/content/102/50/18237.full

Presenter

Natasha Mitchell


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