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Sam Kean Quotes


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Quotes by Sam Kean

Showing 31-40 of 98 Quotes by Sam Kean

Although it's the hub of the nervous system and the ultimate terminus of every nerve, the brain itself lacks enervation and therefore cannot feel pain.

~Sam Kean

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Brains, you see, vary a lot from person to person - they vary as much as faces do.

~Sam Kean

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X-rays revealed that some people were born without a corpus callosum, and they seemed just fine.

~Sam Kean

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No one knows quite the reason, but surgically severing the corpus callosum can reduce the rate and intensity of seizures. So in the early 1960s, a few patients with severe epilepsy had their corpus callosums cut, turning them into split-brain people.

~Sam Kean

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The brain, which is plastic when young, must be exposed to certain sights early in life, or it will remain blind to those sights forever.

~Sam Kean

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Animal vision - including human vision - is so biased toward movement that we don't technically see stationary objects at all.

~Sam Kean

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The amygdala plays a crucial role in processing fear, and minus her two amygdalae, S.M. became unflappable. Studies of her are actually a hoot to read, since they basically consist of scientists concocting ever-more-elaborate ways of trying to scare her.

~Sam Kean

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The amygdala is one of those brain structures that a lot of people know a little bit about, and there's a definite tendency to conflate the amygdala and the fear response itself - as if the amygdala, and the amygdala alone, 'causes' fear.

~Sam Kean

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The amygdala is indeed crucial for monitoring our environment and deciding what's worth getting worked up over. Once the amygdala determines this, however, it merely trips another circuit to actually produce the panic.

~Sam Kean

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Most people, even most doctors, learn that the placenta is a nice, tight seal that prevents anything in the mother's body from invading the fetus, and vice-versa. That's mostly true. But the placenta doesn't seal off the baby perfectly, and every so often, something slips across.

~Sam Kean

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Biography

Nationality: American

Type: Writer

Born: Unknown

Links

Find Sam Kean on Amazon

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