Neuroscience

Brain adds cells in puberty to navigate adult world

The brain adds new cells during puberty to help navigate the complex social world of adulthood, two Michigan State University neuroscientists report in the current issue of the Proceedings of the National Academy of Sciences.

Neuroscience

Researchers find amygdala not always necessary for fear

(Medical Xpress)—Researchers at the University of Iowa have found that three volunteer women with defective amygdalas were able to experience internal fear. In their paper published in the journal Nature Neuroscience, the ...

Neuroscience

Neuroscientists pinpoint location of fear memory in amygdala

A rustle of undergrowth in the outback: it's a sound that might make an animal or person stop sharply and be still, in the anticipation of a predator. That "freezing" is part of the fear response, a reaction to a stimulus ...

Psychology & Psychiatry

Childhood trauma leaves its mark on the brain

It is well known that violent adults often have a history of childhood psychological trauma. Some of these individuals exhibit very real, physical alterations in a part of the brain called the orbitofrontal cortex. Yet a ...

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