Researchers: Fear of snakes has biological roots

10/29/2013 | PhysOrg.com

Primate brains are fine-tuned to generate a fear response when in the presence of snakes, according to new research that identified unique neuron activity in the brains of macaque monkeys when confronted with the slithery creatures. After attaching electrodes to the monkeys' brains, the scientists showed them images of random stimuli and found that snakes elicited the most rapid neurological response, a factor they attribute most likely to evolutionary factors.

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