The Deep History of Ourselves: The Four-Billion-Year Story of How We Got Conscious Brains

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Penguin, Aug 27, 2019 - Science - 432 pages
Longlisted for the PEN/E.O. Wilson Literary Science Writing Award

A leading neuroscientist offers a history of the evolution of the brain from unicellular organisms to the complexity of animals and human beings today


Renowned neuroscientist Joseph LeDoux digs into the natural history of life on earth to provide a new perspective on the similarities between us and our ancestors in deep time. This page-turning survey of the whole of terrestrial evolution sheds new light on how nervous systems evolved in animals, how the brain developed, and what it means to be human.

In The Deep History of Ourselves, LeDoux argues that the key to understanding human behavior lies in viewing evolution through the prism of the first living organisms. By tracking the chain of the evolutionary timeline he shows how even the earliest single-cell organisms had to solve the same problems we and our cells have to solve each day. Along the way, LeDoux explores our place in nature, how the evolution of nervous systems enhanced the ability of organisms to survive and thrive, and how the emergence of what we humans understand as consciousness made our greatest and most horrendous achievements as a species possible.
 

Contents

Why on Earth
1
Deep Roots
7
Size Matters
77
And Then Animals Invented Neurons
105
Metazoan Bread Crumbs in the Oceans
135
The Vertebrates Arrive
155
Ladders and Trees in the Vertebrate Brain
177
Cogitation
203
Ah Memory
294
Putting Memories in Their Places
300
The Shallows
313
Creeping Up on Consciousness
324
Emotional Subjectivity
335
The Slippery Slopes of Emotional Semantics
337
Can Survival Circuits Save the Day?
344
Thoughtful Feelings
350

The Evolution of Behavioral Flexibility
216
Surviving and Thriving by Thinking
223
Schmoozing
234
Cognitive Hardware
241
The Cognitive Coalition
249
Rewired and Running Hot
255
Subjectivity
261
What Is It Like to Be Conscious?
269
I Want to Take You Higher
277
Consciousness Through
287
Emotional Brains Run HOT
359
Survival Is Deep but Our Emotions Are Shallow
368
Can We Survive Our SelfConscious Selves?
372
Appendix
381
Bibliographic Key
383
Microbial Life
385
Illustration Credits
401
Index
403
Copyright

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About the author (2019)

Joseph LeDoux is the Henry and Lucy Moses Professor of Science, and Professor of Neural Science, Psychology, Psychiatry, and Child and Adolescent Psychiatry at New York University. He directs the Emotional Brain Institute at NYU and at The Nathan Kline Institute for Psychiatric Research, and is Deputy Director of the Max Planck-NYU Center for Language, Music, and Emotion, and a member of the National Academy of Sciences. LeDoux's books include Anxious, Synaptic Self, and The Emotional Brain, and he is a singer and songwriter in the folkrock band the Amygdaloids, and in the acoustic duo So We Are. He lives with his wife Nancy Princenthal in Brooklyn, New York.

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