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

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• Sam Kean:

  No one knows quite the reason, but surgically severing the corpus callosum can reduce the rate and

• Sam Kean:

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

• Sam Kean:

  Those of us raised in modern cities tend to notice horizontal and vertical lines more quickly than

• Sam Kean:

  The idea of critical windows extends beyond just vision, of course: almost every system in the brai

• Sam Kean:

  Guinea pigs are practically synonymous with experiments. Lab rats have become the workhorses of mod

• Sam Kean:

  Animal vision - including human vision - is so biased toward movement that we don't technically see

• Sam Kean:

  The amygdala plays a crucial role in processing fear, and minus her two amygdalae, S.M. became unfl

• Sam Kean:

  Despite what you might guess, when monitoring your breathing, your body doesn't care whether you're

• Sam Kean:

  The amygdala is one of those brain structures that a lot of people know a little bit about, and the

• Sam Kean:

  The amygdala is indeed crucial for monitoring our environment and deciding what's worth getting wor