Coined by researchers to describe the mental experience of psychotherapeutic drug users, "psychedelic" soon came to represent a vibrant visual culture of the 1960s associated with altered states of mind. But the psychedelic sensibility didn't just disappear with the end of the era, and here curator David Rubin traces its evolution into a diverse language of color and light through 75 contemporary artists. This exhibit catalog surveys the day-glow paintings of Peter Saul, Alex Grey, and Kenny Scharf; the pill and hemp leaf paintings of Fred Tomaselli; and the vividly intensified palettes of Douglas Bourgeois and Sharon Ellis, as well as works by Frank Stella, Andy Warhol, and Judy Chicago.