Gamma delta T cells in the meninges of the brain release a cell signaling molecule that does more than protect mice from microbial pathogens.

Those who had developed PTSD appear to be less able to suppress unwanted memories—traumatic or not—suggesting a role for the general ability to control memory recall in the disorder.

A meta-analysis of more than 80 studies from the past four decades finds weak evidence to support the use of medicinal cannabis to treat anxiety, depression, and other mental health disorders.

Humans might also inherit such brain changes, a new study suggests.

In adult mice, neurogenesis increases social confidence by suppressing the activity of mature neurons.

Researchers found several hundred genes expressed in the human brain are tied to cognition or neuroses.

In the presence of competition, archerfish become more hesitant but accurate shooters.

Scientists are beginning to unravel the mechanisms behind the therapeutic effects of psychedelic drugs.

In a pair of clinical studies of psilocybin, the active ingredient in magic mushrooms, participants reported positive changes to their moods and outlooks.