Psychedelic art (also known as psychedelia) is art, graphics or visual displays related to or inspired by psychedelic experiences and hallucinations known to follow the ingestion of psychedelic drugs such as LSD and psilocybin. The word "psychedelic" (coined by British psychologist Humphry Osmond) means "mind manifesting". By that definition, all artistic efforts to depict the inner world of the psyche may be considered "psychedelic". In common parlance "psychedelic art" refers above all to the art movement of the late 1960s counterculture, featuring highly distorted or surreal visuals, bright colors and full spectrums and animation (including cartoons) to evoke, convey, or enhance psychedelic experiences. Psychedelic visual arts were a counterpart to psychedelic rock music. Concert posters, album covers, liquid light shows, liquid light art, murals, comic books, underground newspapers and more reflected not only the kaleidoscopically swirling colour patterns of LSD hallucinations, but also revolutionary political, social and spiritual sentiments inspired by insights derived from these psychedelic states of consciousness.
Leading proponents of the 1960s Psychedelic Art movement were San Francisco poster artists such as: Rick Griffin, Victor Moscoso, Bonnie MacLean, Stanley Mouse & Alton Kelley, and Wes Wilson. Their Psychedelic Rock concert posters were inspired by Art Nouveau, Victoriana, Dada, and Pop Art. Posters for concerts in the Fillmore West, a concert auditorium in San Francisco, popular with Hippie audiences, were among the most notable of the time. Richly saturated colors in glaring contrast, elaborately ornate lettering, strongly symmetrical composition, collage elements, rubber-like distortions, and bizarre iconography are all hallmarks of the San Francisco psychedelic poster art style. The style flourished from roughly the years 1966 to 1972. Their work was immediately influential to album cover art, and indeed all of the aforementioned artists also created album covers. Psychedelic light-shows were a new art-form developed for rock concerts. Using oil and dye in an emulsion that was set between large convex lenses upon overhead projectors, the lightshow artists created bubbling liquid visuals that pulsed in rhythm to the music. This was mixed with slide shows and film loops to create an improvisational motion picture art form, and to give visual representation to the improvisational jams of the rock bands and create a completely "trippy" atmosphere for the audience.
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