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Why do we freeze when startled? New study points to serotonin

This shows a stick and ball model of serotoninWhen fruit flies experience an unexpected change in its surroundings, serotonin produced in the ventral nerve cord slows the insect down. The findings may shed light on the neurobiological mechanisms of human startle response.

from Neuroscience News https://ift.tt/2Ores4I
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