Hallucinogens fall into several different classes, as broadly defined by pharmacological
mechanism of action, and chemical structure. These include psychedelics, entactogens …

Abstract Users of±3, 4-methylenedioxymethamphetamine (MDMA;'ecstasy') report prosocial
effects such as sociability and empathy. Supporting these apparently unique social effects …

Lysergic acid diethylamide (LSD) is a classic psychedelic, 3, 4-
methylenedioxymethamphetamine (MDMA) is an empathogen, and d-amphetamine is a …

Behavioral-immune-system research has illuminated how people detect and avoid signs of
infectious disease. But how do we regulate exposure to pathogens that produce no …

Research since the 1950s has shown that psychedelic-assisted psychotherapy has had
significant positive effects in reductions of specific clinical symptoms and increases in quality …

Previous research on climate change impact regularly considers conflict outcomes, thereby
disregarding cooperative behaviour such as altruism. Drought has the potential to fuel inter …

Third-party intervention, such as when a crowd stops a mugger, is common. Yet it seems
irrational because it has real costs but may provide no personal benefits. In a laboratory …

Background: Despite the growth of psychedelic research, psychedelic-assisted group
psychotherapy (PAGP) has received little attention in comparison to individual psychedelic …

According to the recalibrational theory of anger, anger is a computationally complex
cognitive system that evolved to bargain for better treatment. Anger coordinates facial …

Highlights•Welfare tradeoffs involve sacrificing personal welfare to increase another's
welfare.•Although making welfare tradeoffs feels easy, this hides complex computations.• …