Descartes’ Error Book Summary - Descartes’ Error Book explained in key points
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Descartes’ Error summary

Antonio Damasio

Emotion, Reason and the Human Brain

4.5 (223 ratings)
31 mins

Brief summary

Descartes' Error by António R. Damásio is a thought-provoking book that challenges the traditional belief that reasoning and emotions are separate. The author argues that emotions are essential for rational decision making and illustrates this with compelling case studies.

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    Descartes’ Error
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    We can understand the functions of the brain’s different parts by observing the consequences of brain damage.

    Imagine you’re an engineer, and you’ve been given a complicated machine. Your job is to figure out how it works. As you examine it closer, you see that it has many different parts working together in seemingly mysterious ways. So, how would you go about it?

    Well, you could start by removing one of the parts and seeing what happens. If you take out thingy X and the machine stops making sparks, you could conclude that thingy X has something to do with spark production. Repeat the same procedure with the rest of the parts, and you can gradually figure out how the machine works.

    The same logic applies to understanding the machinery of the human brain – with one important caveat.

    The key message here is: We can understand the functions of the brain’s different parts by observing the consequences of brain damage.

    Of course, it would be extremely unethical to go into someone’s brain and remove a part just to see what happens. Fortunately, for science, we don’t need to.

    Brain-damaging injuries, tumors, and diseases can sometimes affect specific regions of the brain. And, if they happen in just the right way, they can more or less wipe out a single part of the brain without damaging anything else – almost as if an evil scientist came along and scooped it out with a scalpel.

    Assuming the victim survives, his brain will continue to function, but in a different way from before. For instance, damage to a part of the brain called the third frontal gyrus leads to a language disorder known as aphasia. People suffering from this condition struggle to understand or express themselves in speech. Evidently, the third frontal gyrus plays an important role in the brain’s ability to process language.

    In this way, by comparing how the brain functions before and after one of its parts have been damaged, we can start mapping out the role that part normally plays in the brain’s overall machinery. This is how the field of experimental neuropsychology approaches the study of the brain. And as we’ll see in the coming blinks, it has led to some remarkable discoveries.

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    What is Descartes’ Error about?

    Descartes’ Error (1995) turns conventional wisdom about the human mind on its head. Combining sophisticated neuroscience with fascinating case studies about patients with brain damage, it shows how the traditional dualisms of Western thought do not stand up to scrutiny. Reason depends on emotion, and the brain is intimately connected with the body.

    Descartes’ Error Review

    Descartes’ Error (1994) explores the crucial role emotions play in human decision-making and rationality. Here's why this book is worth reading:

    • It presents compelling evidence that emotions are not disruptive to rationality, but rather an integral part of it, challenging traditional views.
    • The book offers insight into the neurological basis of emotions, shedding light on the fascinating connection between mind and body.
    • With its accessible language and concrete examples, it conveys complex scientific ideas in a way that is engaging and relatable.

    Who should read Descartes’ Error?

    • Rationalists skeptical of emotions
    • Emotional people sick of being called irrational
    • Anyone interested in the intersections between neuroscience, psychology, and philosophy

    About the Author

    Antonio Damasio is a professor of psychology, philosophy, and neurology at the University of Southern California, where he is also the Director of the Brain and Creativity Institute and holds the David Dornsife Chair in Neuroscience. His previous books include The Feeling of What Happens, Looking for Spinoza, Self Comes to Mind, and The Strange Order of Things, all of which have been critically acclaimed and taught at universities around the world. He has been the recipient of the Grawemeyer Award, the Asturias Prize in Science and Technology, and the Signoret Prize, among many other distinctions.

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    Descartes’ Error FAQs 

    What is the main message of Descartes’ Error?

    The main message of Descartes’ Error is how emotions and the body are essential for rational decision-making.

    How long does it take to read Descartes’ Error?

    The estimated reading time for Descartes’ Error is a few hours. The Blinkist summary can be read in just 15 minutes.

    Is Descartes’ Error a good book? Is it worth reading?

    Descartes’ Error is a valuable book that offers insights into the connection between emotions and rationality, making it worth reading.

    Who is the author of Descartes’ Error?

    The author of Descartes’ Error is Antonio Damasio.

    What to read after Descartes’ Error?

    If you're wondering what to read next after Descartes’ Error, here are some recommendations we suggest:
    • The Tale of the Dueling Neurosurgeons by Sam Kean
    • The Disordered Mind by Eric R. Kandel
    • The Brain’s Way of Healing by Norman Doidge
    • Phantoms in the Brain by V. S. Ramachandran and Sandra Blakeslee
    • Emotions Revealed by Paul Ekman
    • Deviate by Beau Lotto
    • Emotional Intelligence by Daniel Goleman
    • The Strange Order of Things by Antonio Damasio
    • How Emotions Are Made by Lisa Feldman Barrett
    • Read People Like a Book by Patrick King