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With any hallucinations, if you can do functional brain imagery while theyre going on, you will find that the parts of the brain usually involved in seeing or hearing - in perception - have become super active by themselves. And this is an autonomous activity this does not happen with imagination.

Oliver Sacks

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Oliver Sacks
Age: 82 †
Born: 1933
Born: July 9
Died: 2015
Died: August 30
Chemist
Neurologist
Physician Writer
Science Communicator
Screenwriter
University Teacher
Writer
Oliver Wolf Sacks
Brain
Perception
Happens
Parts
Hallucinations
Become
Activity
Functional
Doe
Usually
Autonomous
Find
Involved
Imagery
Going
Imagination
Super
Happen
Hearing
Seeing
Active

More quotes by Oliver Sacks

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It seems that the brain always has to be active, and if the auditory parts of the brain are not getting sufficient input, then they may start to create hallucinatory sounds on their own. Although it is curious that they do not usually create noises or voices they create music.
Oliver Sacks
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Even when other powers have been lost and people may not even be able to understand language, they will nearly always recognize and respond to familiar tunes. And not only that. The tunes may carry them back and may give them memory of scenes and emotions otherwise unavailable for them.
Oliver Sacks
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Fascinating, Doidge's book is a remarkable and hopeful portrait of the endless adaptability of the human brain.
Oliver Sacks
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Language, that most human invention, can enable what, in principle, should not be possible. It can allow all of us, even the congenitally blind, to see with another person’s eyes.
Oliver Sacks
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Studies by Andrew Newberg and others have shown that long-term practice of meditation produces significant alterations in cerebral blood flow in parts of the brain related to attention, emotion, and some autonomic functions.
Oliver Sacks
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Music, uniquely among the arts, is both completely abstract and profoundly emotional.
Oliver Sacks
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Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and adventure.
Oliver Sacks
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In terms of brain development, musical performance is every bit as important educationally as reading or writing.
Oliver Sacks
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I have often seen quite demented patients recognize and respond vividly to paintings and delight in the act of painting at a time when they are scarcely responsive, disoriented, and out of it.
Oliver Sacks
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We have five senses in which we glory and which we recognize and celebrate, senses that constitute the sensible world for us. But there are other senses - secret senses, sixth senses, if you will - equally vital, but unrecognized, and unlauded ... unconscious, automatic.
Oliver Sacks
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I think there are dozens or hundreds of different forms of creativity. Pondering science and math problems for years is different from improvising jazz. Something which seems to me remarkable is how unconscious the creative process is. You encounter a problem, but can't solve it.
Oliver Sacks
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Music is...a fundamental way of expressing our humanity - and it is often our best medicine.
Oliver Sacks
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Music, uniquely among the arts, is both completely abstract and profoundly emotional. It has no power to represent anything particular or external, but it has a unique power to express inner states or feelings. Music can pierce the heart directly it needs no mediation.
Oliver Sacks
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But the saddest difference between them was that Zazetsky, as Luria said, 'fought to regain his lost faculties with the indomitable tenacity of the damned,' whereas Dr P. was not fighting, did not know what was lost. But who was more tragic, or who was more damned -- the man who knew it, or the man who did not?
Oliver Sacks
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Music has a bonding power, it's primal social cement
Oliver Sacks
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Creativity...involves the power to originate, to break away from the existing ways of looking at things, to move freely in the realm of the imagination, to create and recreate worlds fully in one's mind-while supervising all this with a critical inner eye.
Oliver Sacks
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We see with the eyes, but we see with the brain as well. And seeing with the brain is often called imagination.
Oliver Sacks
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One might say that science itself, and civilization and art, are all about different orderings of the world - to contain it, and to make it in some sense intelligible, communicable. And bearable.
Oliver Sacks
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If a man has lost a leg or an eye, he knows he has lost a leg or an eye but if he has lost a self—himself—he cannot know it, because he is no longer there to know it.
Oliver Sacks
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To be ourselves we must have ourselves – possess, if need be re-possess, our life-stories. We must “recollect” ourselves, recollect the inner drama, the narrative, of ourselves. A man needs such a narrative, a continuous inner narrative, to maintain his identity, his self.
Oliver Sacks