Brain scans of people who took psilocybin -- the psychedelic drug in 'shrooms -- revealed that the ... explanation for psilocybin's mind-bending effects, and could lay the groundwork for better ...

The methylphenidate served as a control, since it could simulate the cardiovascular effects and physiological arousal that ...

Narrator: Scientists believe that it's a combination of these effects that make psilocybin so useful for combating depression and addiction. When new areas in the brain start talking to each other ...