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Science Friday > Archives > 2002 > March > March 29, 2002:
Hour Two: Joseph LeDoux - 'Synaptic Self'

In animals, fear is a behavior that's both innate and learned. A rat will freeze at the sight of its very first cat -- but it can also be taught to freeze when there's no cat in sight. What controls these responses? Is it the same as what controls similar responses in humans? In this hour of Science Friday, Ira talks with scientist Joseph LeDoux about his new book " The Synaptic Self: How Our Brains Become Who We Are."

Plus - comet Ikeya-Zhang, and other wonders of the night sky, and what tree rings can tell us about the climate.

Call in with your comments and questions at 1-800-989-8255, and share your opinions online in our Listeners' Lounge (registration required).

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Guests:
Joseph LeDoux
Author: "The Synaptic Self: How Our Brains Become Who we Are"
Professor of Science, Center for Neural Science
New York University
New York, New York

Joe Rao|
Meteorologist, News 12 Network
Publisher, Skyway Fliers
Author: Spacewatch Friday (space.com); Sky Watch (New York Times)
Levittown, NY

Michael Mann
Professor, Department of Environmental Sciences
University of Virginia
Charlottesville, VA

Books/Articles Discussed:

Low-Frequency Signals in Long Tree-Ring Chronologies for Reconstructing Past Temperature Variability. Jan Esper, Edward R. Cook, and Fritz H. Schweingruber Science 2002 295: 2250-2253.
 
'Synaptic Self : How Our Brains Become Who We Are,' by Joseph Ledoux. Viking, 2002.

(find more SciFri books here)

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Related Links:
LeDouxlab Web
Center for the Neuroscience of Fear and Anxiety
Emotion Home Page
EDGE 3rd Culture: A Talk With Joseph LeDoux
NIMH - THE EMOTIONAL BRAIN
Scientific American: Explore!: Down Memory Limbo: August 28, 2000
Neuroscience for Kids

Space.com: Viewer's Guide to New Comet Ikeya-Zhang
Comet Ikeya-Zhang Photo Gallery

AP: Study of tree rings reveals climate history
NY Times: Tree Rings Show a Period of Widespread Warming in Medieval Age
University of Arizona: The Laboratory of Tree-Ring Research

This segment produced by: Annette Heist

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