A person with naturally occurring synesthesia experiences the sensory world in overlapping layers. Sounds are seen as colors and tastes are processed as sounds. Overall, there are 60 documented forms ...

In November 1956, three people gathered in a converted Connecticut barn to take LSD, a powerful psychedelic drug that was legal at the time. The children had just been put to bed upstairs. In the ...

LSD is an extremely potent, long-lasting psychedelic drug: A dose of just 100 micrograms is enough to send someone on a hallucinatory trip that can last a whole day. Now, scientists report that the ...