Post Traumatic Stress Disorder

Brain recalls old memories via new pathways

People with anxiety disorders, such as post traumatic stress disorder (PTSD), often experience prolonged and exaggerated fearfulness. Now, an animal study suggests that this might involve disruption of a ...

Jan 19, 2015
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Medial prefrontal cortex linked to fear response

(Medical Xpress)—In a new paper published in the current issue of Neuron, Harvard Medical School researchers at McLean Hospital report that increased activity in the medial prefrontal cortex of the brain ...

Dec 04, 2013
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The impact of bacteria in our guts

The word metabolism gets tossed around a lot, but it means much more than whether you can go back to the buffet for seconds without worrying about your waistline. In fact, metabolism is the set of biochemical ...

Aug 22, 2014
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Latest Spotlight News

People use handshakes to sniff each other out

Limp or firm, your handshake conveys subliminal social cues. Now, research reveals it also transmits chemical signals that could explain why the greeting evolved in the first place.