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A Brief Tour of Human Consciousness: From Impostor Poodles to Purple Numbers

A Brief Tour of Human Consciousness: From Impostor Poodles to Purple Numbers
By V. S. Ramachandran

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A brilliant, wryly humorous, brief tour of the human mind built on first hand experience with patients and a dazzling research career. This long awaited new book by V.S. Ramachandran is akin to the bestselling works about patients by Oliver SacksWhat is body image? Why do we blush? What is art? What is free will? What is self? Until recently, these questions were the province of philosophy, but studies of the brain are now producing explanations based on research anyone can see for themselves in PET scans and MRI images. Neuroscientists such as V.S. Ramachandran are now unlocking the key to what many have considered the metaphysics of our consciousness. This knowledge of the brain has progressed so rapidly few have yet recognized it for what it is. It will change how we think of human beings, even our very notion of understanding. This is a revolution, already underway that will have impact on all our lives. But until this book, topics such as art, creativity and love have received very little attention from neurology and new findings have not been offered in an approachable way. Dr. Ramachandran presents new theories and experiments that illuminate the biggest questions we can ask. Picking up where the great earlier thinkers like Freud, and Darwin began, V.S. Ramachandran and his colleagues are forging a whole new science. Walk through a final frontier of human knowledge with the perfect, eloquent, expert guide on this unique brief tour.


Product Details

  • Amazon Sales Rank: #22922 in Books
  • Published on: 2005-07-26
  • Original language: English
  • Number of items: 1
  • Binding: Paperback
  • 208 pages

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Editorial Reviews

From Publishers Weekly
What does an amputee who still feels a phantom limb have in common with an avant-garde artist, or a schizophrenic who claims to be controlled by alien implants, or an autistic child who can draw a hyper-realistic horse? According to neuroscientist Ramachandran (coauthor, Phantoms in the Brain), named by Newsweek one of the 100 people to watch in the 21st century, the answer lies deep in the physical structures of the brain, and his new book offers a thought-provoking survey of his area of research. Through examples, anecdotes and conjecture, Ramachandran aims "to make neuroscience... more accessible to a broad audience." In this he succeeds admirably, explaining how the roots of both psychological disorders and aesthetic accomplishment can be located in the various regions of the brain and the connections (or lack thereof) between them. The text is engaging and readable , feeling as though Ramachandran had sat down for an afternoon to explain his research over tea (no surprise, as the book grew out of the author's 2003 BBC Reith lectures). Though the topic of neuroscience might initially seem daunting, readers who enjoy science popularization in the vein of Oliver Sacks, Richard Dawkins (both of whom enthusiastically blurb this book) and Stephen Jay Gould will find much to appreciate here.
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From Scientific American
Patient X declares that his mother is an impostor. The diagnosis? Freud might say the patient has a troubled Oedipus complex. But the same patient thinks his poodle is a fraud, too. Ramachandran offers a more rigorous neurological explanation in A Brief Tour of Human Consciousness. Examining the cause for patient X’s behavior is just one stop on the writer’s journey through the neural pathways of the brain. As the tour guide, Ramachandran, a neuroscientist at the University of California at San Diego, leads readers through a collection of his experiments and theories, championing the idea that charting the brain on a neurological level will provide us with a robust understanding of everything from politics to love. Case studies of patients with obscure syndromes help the author solve the brain–mind puzzle piece by piece. In the case of patient X, communication between regions responsible for visual recognition and the production of emotional responses has been impaired. Because the patient recognizes his mother’s face but feels no corresponding emotion, he deduces that she is simply a look-alike. Parts of the book are fascinating and accessible, especially Ramachandran’s work with phantom limbs and synesthesia—in which patients seem to transpose the processing of senses, such as sensing the note "middle C" as the color green. Ramachandran presents a convincing argument relating the syndrome to the enhancement of an ability we all possess: drawing connections between objects and events. In a noticeable departure from the empirical explanations of the early sections, Ramachandran later explores possible psychological underpinnings for the evolution of human language and a universal definition of art. The final chapter, an abstract, philosophical foray into free will and the human sense of self, is even more speculative. At times a captivating presentation of facts and anecdotes and at other times an assortment of theories, the book is more of a tour of Ramachandran’s opinions and experiences than the concise introduction one expects from the title. In the end, the book succeeds in delivering an entertaining and thought-provoking look at how and why we should think about thought.

Lisa DeKeukelaere

From the Back Cover
A Brief Tour of Human Consciousness: Back Cover Copy

" Vintage Ramachandran, packed with ideas that are bold, irreverent, original, and ingenious. People who have never thought much about the brain will be intrigued, but so will those who, like me, have spent most of their lives thinking about the brain. It is truly a breath of fresh air."

–David Hubel, Nobel Laureate, Harvard University, author of Eye, Brain, and Vision

" An extraordinary book by a remarkable scientist! Ramachandran is in many ways the modern Paul Broca, the great French neurologist who opened up the biological analysis of higher mental functions by studying patients with brain lesions. In a similar vein Ramachandran has used the study of patients to elucidate a range of fascinating mental functions. His insights have stimulated discussions in neuroscience over the last 25 years. Here is Ramachandran at his best; his most lucid and creative."

–Eric R. Kandel, M.D., Nobel Laureate, Columbia University

" Ramachandran is a latter-day Marco Polo, journeying the silk road of science to strange and exotic Cathays of the mind. He returns laden with phenomenological treasures...which, in his subtle and expert telling, yield more satisfying riches of scientific understanding."

–Richard Dawkins, Oxford University, author of The Blind Watchmaker

" An unusually clever neuroscientist explains baffling cases in neurology and neuropsychiatry and concludes that brain science can now resolve many of the age-old quanderies of philosophers. A thought-provoking, wonderful read."

–Roger Guillemin, Nobel Laureate, The Salk Institute

" Today we're going through a revolution in neuroscience. The tidal wave of new research can be overwhelming, but V. S. Ramachandran, drawing on his own pioneering work on patients, succeeds in creating a witty, elegant introduction to the mysteries and revelations to be found within our skulls."

–Carl Zimmer, author of Soul Made Flesh

"V. S. Ramachandran is one of our most gifted physicians and expositors, and in this new book he illuminates everything he touches—whether it is phantom limbs and how they can be 'cured'; or how the brain can generate illusions and delusions; or synesthesia and its relation to metaphor, creativity, and art; or the ultimate questions of how brain relates to mind. A Brief Tour of Human Consciousness belongs to that rare category of scientific book, one as accessible as it is deep."

Oliver Sacks, M.D.

How can some people come to believe that their poodle is an impostor? Or see colors in numbers? Internationally acclaimed neuroscientist V. S. Ramachandran now shares his unique insight into human consciousness in an entertaining, inspiring, and intellectually dazzling brief tour of the ultimate frontier—the thoughts in our heads.

A Brief Tour of Human Consciousness is made up of five investigations of the greatest mysteries of the brain. The first chapter shows how amputees feel pain in limbs they no longer have as it introduces the great revolution of our age: neuroscience. The second chapter walks through how what we see determines our thoughts, and demonstrates the counterintuitive point that believing is in fact seeing. The third chapter takes a leap beyond cutting edge science to audaciously set out a general theory of beauty, explaining why, the world over, cultures have fundamentally similar notions of what is attractive. The fourth chapter explores the bizarre world of synesthetes, people who see colors in numbers, textures in smells, sounds in sights, and flavors in sounds. Finally, V. S. Ramachandran, one of the foremost neuroscientists in the world today, sums up the implications of the revolution in our understanding of consciousness to make a fascinating argument about our essential sense of self and its distributed nature.

Take a tour with the perfect guide to one of the strangest places in the natural world, the human mind.

V. S. Ramachandran, M.D., Ph.D., is Director of the Center for Brain and Cognition and Professor of Psychology and Neuroscience at the University of California, San Diego, and Adjunct Professor of Biology at The Salk Institute. He has received many honors and awards including the Presidential Lecture Award from the American Academy of Neurology and the Ramon y Cajal Award from the International Neuropsychiatry Society.

He gave the inaugural keynote lecture at the Decade of the Brain conference held by the National Institute of Mental Health at the Library of Congress. His critically acclaimed Phantoms in the Brain has been translated into eight languages. Newsweek has named him a member of "The Century Club"—one of the hundred most prominent people to watch in the twenty-first century.

He lives in Del Mar, California.



Customer Reviews

fascinating intro to recent neuroscience of consciousness5
I attended the 2005 Skeptics Society conference on Brain, Mind, and Consciousness at Caltech, where Ramachandran had been scheduled to speak but was unable to do so because of a family emergency. Although I was not previously familiar with his work, the description led me to believe he was a speaker I would be interested in hearing, and this book, which I purchased at the conference, provides a strong case for that. I've long had an interest in philosophy of mind and cognitive science, and minored in cognitive science in my Ph.D. studies (never completed) at the University of Arizona. I've been out of academia for 11 years now, and apart from reading occasional works like Daniel Dennett's Consciousness Explained and Freedom Evolves, I've not been keeping close tabs on the field. The conference and this book were quite a pleasure--it is clear that there have been some significant developments over the last decade.

It is hard to believe that there are still people who think the brain is little more than a radio receiver, a set of mechanical controls for a disembodied spirit to manipulate the body. Ramachandran's book--like the case studies of Oliver Sacks and A.N. Luria--shows how wrongheaded that view is.

This is a thin (112 pages of text, 45 pages of notes), very accessible and entertaining book. If you enjoy the works of Sacks and Luria, you are likely to enjoy this as well. This is not a collection of case studies, though there are some descriptions of particular patients--it is written from a higher elevation, bringing together recent results, explaining unusual phenomena, and speculating about how those phenomena may tie in to a further understanding of the details of the brain's function.

The book came from Ramachandran's BBC Reith lectures, so it is for a popular audience, with the notes providing some more underlying detail. There are five chapters, each dealing with a single topic. The first chapter is about amputees who experience pain in their "phantom limbs" and how the parts of the brain which had been devoted to the now-absent limbs can become mapped to still-present parts of the body which are handled by physically proximate parts of the brain. For example, a patient whose left arm had been amputated could feel contact to the nonexistent fingers of his left hand from touches to parts of his face or upper arm. Ramachandran then uses this remapping phenomenon to speculate about the causes of Capgras' syndrome (where a patient believes people he knows have been replaced with impostors), synesthesia, and pain asymbolia, where a patient responds to pain stimulus with laughter.

The second chapter is about vision, and specifically about the phenomena of blindsight (where a person has no experience of seeing, but at an unconscious level does see), hemisphere neglect, and mirror agnosia. In this chapter Ramachandran discusses "mirror neurons," neurons found in monkeys which activate when a monkey performs some task, but also when the monkey sees another monkey perform the same task.

The third chapter, "The Artful Brain," is the most speculative, and provides Ramachandran's suggested ten "universal laws of art," which he offers as features we find aesthetically pleasing in art, and discusses some reasons why those features might be pleasing to the brain.

The fourth chapter deals in more detail with synesthesia, the perception of stimuli with multiple senses, such as experiencing colors corresponding with sounds or numbers. He links this to cross-activation of sites in the brain (similar to his discussion in the first chapter), points out some similar phenomena that most people share (such as a tendency to associate certain kinds of abstract shapes with certain sounds or names), and speculates that such associations may have paved the way for the evolution of language from non-verbal communication.

The fifth and final chapter is titled "Neuroscience--The New Philosophy." Ramachandran discusses how some of the phenomena of neuroscience might bear on questions from philosophy of mind about qualia, free will, and self-awareness. The chapter doesn't get very deep into any of these philosophical issues, but it's clear that more has been learned in the last few decades of neuroscience than in the last few millenia of philosophy.

I highly recommend this book as an introduction to these topics.

Neuropathology and the Mind5
This book is an expansion and revision of a series of talks that the author gave as the 2003 Reith Lectures on BBC Radio. The BBC title was "The Emerging Mind." To summarize the book in a few inaccurate words, the author presents the contributions that neuropathology and the study of unusual perceptual modes like synaesthesia make to the study of the mind considered as a collection of brain structures that process sensory data and the self considered as a metarepresentation within such a mind.

Despite the complex ideas, the discussion is lucid and engaging. Dr. Ramachandran has the courage to suggest new hypotheses and to propose experiments to test them, and he also has a sense of humor.

The author writes in the Introduction, "As my colleague Oliver Sacks said of one of his books: `the real book is in the endnotes, Rama,`" which is certainly true of this edition. There are 45 pages of endnotes for 112 pages of text. The endnotes contain the most interesting discussions and the clearest exposition, which is why I was very disappointed to see that endnotes 11 and 12, the final pair of endnotes in the last chapter, appear to be missing from the Endnotes section. I would really like to read what the author has to say about Anton's syndrome and hypnotic induction. Perhaps the author or publisher could post these on a website somewhere.

The Glossary in the back of the book is substantially the same as the one provided on the BBC website for the original talks. Because of the nature of the subject, it contains both technical scientific terms like _phosphorylation_ and some philosophical terms like _qualia_.
The Glossary does not contain the term _exaption_, not used in the text of original talks but used several times in the book, which I found difficult.

The author, who names Shiva Dakshinamurthy, Lord of Gnosis, as one of the dedicatees of this volume, grew up in Thailand and received his medical degree in India; yet he may mention South Asian philosophy less in this book than the average Western writer who produces a book on the brain for popular consumption. Laboratory experiments drive Dr. Ramachandran's speculation. Nevertheless, because he suggests the relationship between _qualia_ and underlying anatomy and chemistry is not entirely arbitrary, some of us may wish to conclude that introspection is more valuable than is often supposed. The author also writes about the cross-cultural aspects of art, suggesting that there may be some universals of aesthetics; I found this discussion provocative, but not entirely persuasive.

Of course, younger readers who are eager to know more about neuroscience and the directions that such research will proceed in the future should read this book; moreover, older readers like myself with aging brains and perceptual systems may find their need to read this book is urgent and immediate.

Incredibly disappointing1
After reading Phantoms in the Brain, I was excited to see another book out by V.S. Ramachandran. Sadly, this book is just a dumbed-down rehash of Phantoms. There are only a few snippets of actual new material in this book and they're not covered in any kind of depth. Additionally, he introduces his own personal opinions regarding the human condition that have nothing to do with the studies of the brain. It doesn't even fit at all into the flow of the book.
Don't bother reading this book if you've already read Phantoms in the Brain. But if you haven't read it, I highly, highly recommend Phantoms.