Cannabis and hallucinations: Studies in human subjects

Abstract

Cannabis is the world's most widely used illicit drug. Although the effects of cannabis on perception are well documented, little is known about their neural basis or how these may contribute to the formation of psychotic symptoms, particularly hallucinations. This chapter examines the relationship between cannabis, psychosis and hallucinations, and describes the small number of studies that have directly examined the effects of cannabis and Δ-9-THC on sensory cortices.