Aug 28, 2009

The Biology Of Fear And Anxiety: Evidence Points To Chemical Trigger-1982

Published: September 7, 1982

Illustrations: Drawing of the human brain Drawing of brain's receptor system

INJECTIONS of a synthetic substance made for studies of the chemistry of human emotion have produced severe anxiety in monkeys within seconds. The animals became agitated, their hair rose, they squirmed and they displayed other outward signs of extreme alarm. These effects could be quickly halted by other chemicals.

Scientists have known for years that drugs such as the benzodiazepines Librium and Valium can lessen anxiety. But the ability to create such a pure state almost instantly with a drug alone is new and unexpected, according to scientists at the National Institute of Mental Health in Bethesda, Md...Click anywhere in this sentence to continue reading...

via The New York Times

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