The Acid Tests Testing were a series of parties Social_event held Hold by author Ken Kesey primarily in the San Francisco Bay Area during the mid-1960s , centered entirely on the use Using of , and advocacy of , the psychedelic drug LSD , also known as `` acid '' .

The name `` Acid Test Testing '' was coined Writing by Kesey , after the term `` acid test Testing '' used Using by gold miners in the 1850s .

The Merry Pranksters were central to organizing Arranging the Acid Tests , including Pranksters such as Lee Quarnstrom and Neal Cassady .

The Acid Tests Testing are notable for their influence Influence on the LSD-based counterculture of the San Francisco area and subsequent transition Change from the beat generation to the hippie movement Social_event .

The Jefferson Airplane song Vocalizations `` A Song for All Seasons '' ( from `` Volunteers '' ) mentions the Acid Tests Testing .

Due to noise complaints on the final night of the festival , the Louisville Police Department interrupted Hindering and cut Removing Scratch Acid 's set Placing short .