Washington: A new study has found that administration of cannabinoids (marijuana) after experiencing a traumatic event blocks the development of post-traumatic stress disorder (PTSD)-like symptoms.The study was conducted at the University of Haifa, where researchers examined how administering cannabinoids (synthetic marijuana) affects the development of PTSD-like symptoms in rats."We found that there is a ``window of opportunity`` during which administering synthetic marijuana helps deal with symptoms simulating PTSD in rats," Dr. Irit Akirav of the University of Haifa``s Department of Psychology, who led the study, said.Dr. Akirav along with research student Eti Ganon-Elazar exposed a group of rats to extreme stress, and observed that the rats did indeed display symptoms resembling PTSD in humans, such as an enhanced startle reflex, impaired extinction learning, and disruption of the negative feedback cycle of the stress-influenced HPA axis.
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