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The Brain Has Its Own "Autofill" Function for Speech

Narrated by: Mike DelGaudio
Length: 4 mins

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Publisher's Summary

The world is an unpredictable place. But the brain has evolved a way to cope with the everyday uncertainties it encounters—it doesn’t present us with many of them, but instead resolves them as a realistic model of the world. The body’s central controller predicts every contingency, using its stored database of past experiences, to minimize the element of surprise. Take vision, for example: We rarely see objects in their entirety but our brains fill in the gaps to make a best guess at what we are seeing—and these predictions are usually an accurate reflection of reality.

"Ancient Bones Spark Fresh Debate Over First Humans in the Americas" is from, published on April 28, 2017.

©2017 Scientific American (P)2017 Scientific American

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