The disordered mind What unusual brains tell us about ourselves

Eric R. Kandel

Book - 2018

Eric R. Kandel, the winner of the Nobel Prize in Physiology or Medicine for his foundational research into memory storage in the brain, is one of the pioneers of modern brain science. His work continues to shape our understanding of how learning and memory work and to break down age-old barriers between the sciences and the arts. In his seminal new book, The Disordered Mind, Kandel draws on a lifetime of pathbreaking research and the work of many other leading neuroscientists to take us on an unusual tour of the brain. He confronts one of the most difficult questions we face: How does our mind, our individual sense of self, emerge from the physical matter of the brain? The brain's 86 billion neurons communicate with one another through... very precise connections. But sometimes those connections are disrupted. The brain processes that give rise to our mind can become disordered, resulting in diseases such as autism, depression, schizophrenia, Parkinson's, addiction, and post-traumatic stress disorder. While these disruptions bring great suffering, they can also reveal the mysteries of how the brain produces our most fundamental experiences and capabilities--the very nature of what it means to be human. Studies of autism illuminate the neurological foundations of our social instincts; research into depression offers important insights on emotions and the integrity of the self; and paradigm-shifting work on addiction has led to a new understanding of the relationship between pleasure and willpower. By studying disruptions to typical brain functioning and exploring their potential treatments, we will deepen our understanding of thought, feeling, behavior, memory, and creativity. Only then can we grapple with the big question of how billions of neurons generate consciousness itself.

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Subjects
Published
New York : Farrar, Straus and Giroux 2018.
Language
English
Main Author
Eric R. Kandel (author)
Edition
First edition
Physical Description
285 pages : illustrations (chiefly color) ; 24 cm
Bibliography
Includes bibliographical references and index.
ISBN
9780374287863
  • What brain disorders can tell us about ourselves
  • Our intensely social nature : the autism spectrum
  • Emotions and the integrity of the self : depression and bipolar disorder
  • The ability to think and to make and carry out decisions : schizophrenia
  • Memory, the storehouse of the self : dementia
  • Our intrinsic creative capability : brain disorders and art
  • Movement : Parkinson's and Huntington's diseases
  • The interplay of conscious and unconscious emotion : anxiety, post-traumatic stress, and faulty decision-making
  • The pleasure principle and freedom of choice: addictions
  • That's all, folks
  • Sexual differentiation of the brain and gender identity
  • Consciousness : the great remaining mystery of the brain
  • Conclusion : coming full circle.
Review by New York Times Review

DISORDERS OF THE MIND have meant different things to different people at different times. In Plato's "Phaedrus," Socrates extols divinely inspired madness in mystics, lovers, poets and prophets; he describes these disturbances as gifts of the gods, rather than maladies. Premodern Europeans more commonly despised the insane, but barely distinguished them from others their society rejected; madmen were imprisoned alongside beggars, blasphemers and prostitutes. Some modern cultures have notions of mental disorder that seem almost as strange to us; syndromes with names like latah, amok and zar defy traditional classifications of Western psychiatry and often call for spiritual rather than medical responses. Our own culture's conception of the varieties of mental illness took shape first from a deck of cards curated by the pioneering German psychiatrist Emil Kraepelin over a century ago. Each of the cards contained an abstract of a patient's medical history, and by grouping them according to similarities he observed among the cases, Kraepelin delineated for the first time some of the major categories physicians now use to diagnose psychiatric diseases. Since the 1980s, Kraepelin's characterizations of psychosis, mania and depression have been virtually codified in the Diagnostic and Statistical Manual of Mental Disorders, the clinician's bible for evaluating patients. Kraepelin was a staunch critic of psychoanalysis and passionate advocate for understanding mental phenomena in strictly biological terms - attitudes now also ascendant in psychiatric biomedicine. Kraepelin's ideas permeate "The Disordered Mind: What Unusual Brains Tell Us About Ourselves," Eric Kandel's engaging new overview of contemporary thinking about the intersection of mental health and neuroscience. Kandel's chief aim is to explore "how the processes of the brain that give rise to our mind can become disordered, resulting in devastating diseases that haunt humankind," and he declares at the outset his intention to weave Kraepelin's story throughout. The book's very structure emulates the organization of a neo-Kraepelinian diagnostic manual, with a succession of chapters devoted to conditions including schizophrenia, bipolar disorder and autism . Kraepelin's lasting influence can be felt in the way Kandel reduces these mental conditions chiefly to microscopic causative factors in the nervous system. According to Kandel, mental illnesses are simply brain disorders, and all variations in behavior "arise from individual variations in our brains." Kandel was awarded a 2000 Nobel Prize in Medicine or Physiology for his discovery of molecular processes that underlie learning and memory. In addition to running laboratories at N.Y.U. and then Columbia, he has co-written successive editions of the massive and widely used textbook "Principles of Neural Science," a testament to the same encyclopedic knowledge that is on display in this book. Kandel's well-constructed narrative smoothly blends historical perspective and first-person accounts with explanations of recent experiments. In a chapter on dementia, for instance, Kandel introduces us to the classic brain pathology studies of Alois Alzheimer (a close colleague of Emil Kraepelin); he tells the celebrated story of patient H.M., whose 1953 brain surgery destroyed his capacity to form new declarative memories; and he guides us through some of his own research on learning in invertebrates and animal models of Alzheimer's disease. In another chapter, on gender identity, Kandel nicely juxtaposes autobiographical accounts from the late Ben Barres, a prominent neuroscientist who began his life as Barbara, against genetic studies of sexual dimorphisms in mice and humans. Kandel is particularly focused on the importance of genetics. Here the author again parallels Kraepelin, who stressed the contribution of heritable "degeneracy" to mental disorders. Kandel credits advances in human genetics and genetic models of disease in animals in large part for our modern appreciation of the brain's role in mental illness. Although he discusses a variety of basic science approaches, he gives pride of place to analyses involving genes and their associated molecules. Kandel's enthusiasm for genetics reflects the current priorities of many psychiatric researchers, but it also drives him to occasional exaggerations. His exuberant verdict, that "decoding the human genome has shown us how genes dictate the organization of the brain and how changes in genes influence disorders," is extraordinarily premature. The sober truth, some of which emerges elsewhere in the book, is that the relationships between genes and most psychiatric diseases are still far from clear. The majority of implicated genes are only weakly correlated with disease. The world's economically costliest mental illness, major depressive disorder, has yet to be tied convincingly to any genes. Even where a gene seems to influence brain cell biology in defined ways - as with the remarkable schizophrenia-related C4 gene Kandel features - the connection between cellular hallmarks and high-level psychiatric symptoms remains mysterious. It is notoriously difficult to find relevant animal models to help make this connection (psychotic mice are hard to spot), which means the more arduous research of humans continues. And while genetic techniques may be an excellent bet for psychiatric science, whether there will be payoffs in the clinic is far from certain. Apart from potential medical benefits, however, Kandel believes that biological studies of the mind "offer the possibility of a new humanism, one that merges the sciences, which are concerned with the natural world, and the humanities, which are concerned with the meaning of human experience." Neurobiology may indeed be well poised to promote this kind of synthesis. Kandel himself bridges science and humanities in a chapter on the link between mental illness and artistic creativity. He also tries to reconcile Kraepelin-style biologism with more humanistically oriented psychotherapy, correctly assailing the false dichotomy between these two approaches, which in practice both act on the brain. But the new humanism Kandel admirably invites might require something more drastic as well: a departure from purely brain-focused views of mental life. This is because all of human experience depends intimately on interactions within and around us that causally affect our brains and minds at every moment. It is misleading to suppose, with Kandel, that "every activity we engage in, every feeling and thought that gives us our sense of individuality, emanates from our brain." Nature does not see the brain as a prime mover. Interestingly, recent genetic findings themselves support a broader view of mental health. No common psychiatric condition is fully heritable, meaning that the environment always plays a role. There are many indications that the brain's interactions with the rest of the body, either during development or later in life, can have a major impact on health. The idea that mental disorders can arise from sources outside the head is actually nothing new - the most devastating psychiatric illness of the 19th century was caused by bacterial syphilis, a sexually transmitted disease that only secondarily affects the brain. The fact that genes that signal an increased risk of autism, schizophrenia and bipolar disorder are often shared (as Kandel notes) further suggests that mental illnesses are not as distinct from one another as previously thought, challenging the outcome of Kraepelin's card game and reminding us of the cultural heritage that frames psychiatric research. The cultural norms surrounding mental health are also increasingly questioned by "neurodiversity" advocates. Like Socrates, they argue that people with unusual brains and minds should be celebrated for their traits, rather than overly medicalized and stigmatized. Acknowledging this view in no way strikes at the need to find treatments for truly debilitating mental problems, or at the significance of the groundbreaking research Kandel covers in his excellent book. It does, however, highlight the need to consider our brains in the social, environmental and bodily contexts in which they operate - contexts that help make us who we are, in both sickness and health.

Copyright (c) The New York Times Company [August 23, 2019]
Review by Booklist Review

The human brain is only about the size of two fists, weighs a meager three pounds, and accounts for just two percent of our body weight. But beyond the humdrum stats is an organ with complexity, power, and magnificence that is truly awe-inspiring. Kandel, a psychiatrist and co-recipient of the 2000 Nobel Prize in Physiology or Medicine, shares his fascination with the structure and workings of the brain, human behavior, and consciousness. He believes brain disorders Alzheimer's disease, autism, bipolar disorder, depression, Parkinson's disease, post-traumatic stress disorder (PTSD), schizophrenia in some ways offer windows onto a normal, healthy brain. Emphasizing advances in the fields of genetics, brain imaging, and animal research, Kandel writes about decision-making, sense of self, emotion, mood, addiction, and gender identity. The most important chapter focuses on the mystery of consciousness (How is it born from the biology and processes of the brain?). Another intriguing chapter looks at the connection between creativity and psychiatric disorders (illustrated with artwork by schizophrenic patients). No doubt neurons will be buzzing as readers contemplate Kandel's thought-provoking book.--Tony Miksanek Copyright 2018 Booklist

From Booklist, Copyright (c) American Library Association. Used with permission.
Review by Publisher's Weekly Review

Nobel Prize-winning-neuroscientist Kandel (Reduction in Art and Brain Science) delves optimistically into the current state of the "new biology of mind," a sophisticated framework deriving from "the marriage of modern cognitive psychology and neuroscience." Kandel consolidates data and ideas from core advances, including genetic research that proves some biological basis for various psychiatric disorders, and imaging techniques that indicate the function of specific brain structures. Emphasizing that brain disorders can yield insights into normal cognitive functioning, he looks to autism for understanding the social brain, depression and bipolar disorders for understanding the emotional brain, schizophrenia for understanding decision making, dementia for understanding memory, and Parkinson's and Huntington's disease for understanding movement. His background as coauthor of the flagship textbook Principles of Neural Science is clear throughout, thanks to the highly accessible presentation, heavy on reader-friendly graphics and explanations of basics. Kandel's deep compassion for people is also evident, as when he discusses how understanding the biological basis for mental disorders might take them out of the realm of legal culpability. The result of his work is an easily comprehended, meticulous synthesis of current research into the biological grounding of the human mind. 77 color and b&w illus. (Aug.) © Copyright PWxyz, LLC. All rights reserved.

(c) Copyright PWxyz, LLC. All rights reserved
Review by Library Journal Review

Nobel Prize winner Kandel (biochemistry & biophysics, Columbia Univ.; The Age of Insight) explores topics such as autism, depression, bipolar disorder, schizophrenia, dementia, post-traumatic stress disorder, and addiction as they relate to brain function. Our understanding of how the brain works has advanced to such a degree that the divide between neurological and psychiatric diseases is narrowing and will in the future lead to better diagnosis, individualized treatment, and prevention. Particularly interesting is the chapter on addiction in which Kandel effectively argues that addiction is a brain disorder, not a moral failing, and should be treated as such. Having a firm grasp on the biology of the brain, especially as it relates to genes and the environment, improves our sense of both individuality and shared humanity. VERDICT Kandel's clear and straightforward writing makes this informative scientific exploration accessible and compelling to both medical practitioners, researchers, and general readers interested in how the mysteries of human nature arise from the physical matter of the brain.-Ragan O'Malley, Saint Ann's Sch., Brooklyn © Copyright 2018. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.

(c) Copyright Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
Review by Kirkus Book Review

The eminent neuroscientist examines what the injured or diseased brain can tell us about a healthy one."Today, as never before, the study of brain disorders is giving us new insight into how our mind normally functions," writes Nobel Prize winner Kandel (Neuroscience/Columbia Univ.; Reductionism in Art and Brain Science: Bridging the Two Cultures, 2016, etc.). That "normal function" is a complex process involving many parts of the brain, reflecting the emergent fact that consciousness is not a single function of the brain but instead a continuum of "different states of minds in different contexts." Complex cognitive skills such as understanding speech require input from several widely separated areas of the brain, including the arcuate fasciculus and Broca's area, while the generation and execution of emotion involve the hypothalamus, striatum, prefrontal cortex, and one tiny part of the brain whose functions are just being understood: "When we laugh or crywhen we experience any emotionit is because these brain structures are responding to the amygdala, and acting on its instructions." But just so, writes Kandel, problems such as addiction also involve several brain regions and neural circuits, requiring multiple approaches to any neuroscientific regime of treatment. Autism is another such area, manifesting itself in failures in the complex problem of interpreting "biological motion," which in turn "enables us to recognize intention, which is critical to a theory of mind." In the end, understanding various states of brain function in varying degrees of health helps address not just the question of consciousness, modern theories of which Kandel addresses in closing, but also the much larger issue of human nature and what it entails. Throughout, the author writes accessibly, though it may help readers to have some background in neuroscience and anatomy.Synaptic pruning, folded proteins, adaptive habits: all fascinating stuff ably interpreted by a master. Copyright Kirkus Reviews, used with permission.

Copyright (c) Kirkus Reviews, used with permission.