News tagged with fear response

Brain parasite directly alters brain chemistry

A research group from the University of Leeds has shown that infection by the brain parasite Toxoplasma gondii, found in 10-20 per cent of the UK's population, directly affects the production of dopamine, a key chemical messenger ...

Nov 04, 2011
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Blocking a single molecule defeats chronic fear

As those who suffer from anxiety disorders and post-traumatic stress disorder can attest, recovering from pervasive fear memories can be difficult or impossible to do. Yale researchers, however, have shown how disabling a ...

Dec 01, 2015
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