When faced with adversity, some people succumb to debilitating psychological diseases including post-traumatic stress disorder and depression, while others are able to remain remarkably optimistic. The difference may depend in part on the chemistry of the brains' reward circuits.
Results of a new study may one day help scientists learn how to enhance a naturally occurring mechanism in the brain that promotes resilience to psychological stress. The findings could point to new psychiatric drugs, and perhaps even new ways to encourage resilience for people in high-stress circumstances, including soldiers in combat, disaster relief workers, and disaster victims, according to the researchers.Researchers found that, in a mouse model, the ability to adapt to stress is driven by a distinctly different molecular mechanism than is the tendency to be overwhelmed by stress. The researchers mapped out the mechanisms -- components of which also are present in the human brain -- that govern both kinds of responses.
Tratto da "
Sciencedaily.com " - prosegui
nella lettura dell'articolo