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LiveScience
LiveScience
Marianne Guenot

'Tour de force' study may explain why trauma can lead to PTSD

PTSD Anxiety Memory Live Science
A 3D rendering of a neuron.

Intense stress can lead to fuzzy memories, which can lead to more generalized fear responses. Now, scientists may have just discovered why.

A study in mice, published Friday (Nov. 15) in the journal Cell, suggests that stress hormones can distort how memories are recorded, leading to less-precise recollections and a future tendency to be unable to properly distinguish between safe triggers and threats.

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