The effect of

cannabis ''Cannabis'' () is a genus of flowering plants in the family Cannabaceae that is widely accepted as being indigenous to and originating from the continent of Asia. However, the number of species is disputed, with as many as three species be ...

on time perception has been studied with inconclusive results. Studies show consistently throughout the literature that most cannabis users self-report the experience of a slowed perception of time. In the laboratory, researchers have confirmed the effect of cannabis on the perception of time in both humans and animals. Studies have sought to explain how cannabis changes the internal clock. Matthew et al. (1998) looked at the cerebellum, positing a relationship between cerebellar blood flow and the distortion of time perception.

Psychoactive effects

Reports of the effects of cannabis on time perception can be found first in arts and literature, and then in medical reports and studies. Notable discussions of the effects occur in "Le Club des Hachichin" (1846), a work by French poet

Théophile Gautier Pierre Jules Théophile Gautier ( , ; 30 August 1811 – 23 October 1872) was a French poet, dramatist, novelist, journalist, and art and literary critic. While an ardent defender of Romanticism, Gautier's work is difficult to classify and rema ...

, and in '' Les Paradis Artificiels'' (1860), a work by

Charles Baudelaire Charles Pierre Baudelaire (, ; ; 9 April 1821 – 31 August 1867) was a French poet, essayist, translator and art critic. His poems are described as exhibiting mastery of rhythm and rhyme, containing an exoticism inherited from the Romantics ...

. French physician Jacques-Joseph Moreau studied the effects of cannabis with the help of Gautier and other artists who experimented with hashish in the Club des Hashischins. Moreau published his findings in ''Hashish and Mental Illness: Psychological Studies'' (1846), noting that hashish caused "errors of time and space" and "time dragging". Later, in 1958, South African physician Frances Ames studied the effects of cannabis extract, noting the "disordered time perception" experienced by her subjects where "brief periods seemed immensely long".Jones, Helen Cc; Paul W. Lovinger (1985) ''The Marijuana Question and Science's Search for an Answer''. Dodd Mead. . American poet Allen Ginsberg's "First Manifesto to End the Bringdown" (1966) noted that "the vast majority all over the world who have smoked the several breaths necessary to feel the effect, adjust to the strangely familiar sensation of Time slow-down."
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) American physician Jerome Groopman of Harvard Medical School, reported that the "perception of time is altered, generally with perceived time faster than clock time" in people who have ingested cannabis. Multiple review studies have confirmed these reports.

In music

Most notably, cannabis has had a long association among musicians and the music industry.Fachner, Jörg (July 2001)
The Space between the Notes—Research on Cannabis and Music Perception
. 11th IASPM Conference, Day Two (Subjectivities and Identities). pp. 308-319. Musicians and audiences who use cannabis often report the primary subjective effects as a distortion of time perception, which acts to augment both musical performance and music appreciation. Contrary to the effects produced by stimulant use, cannabis use is reported to give the performer or listener a subjective perception of time expansion, resulting in the overestimation of the passage of time. Dosage and method of ingestion may lessen or accentuate this effect. This subjective effect of time expansion is responsible for most of the anecdotal accounts in the literature. The effects of cannabis on musicians and those who listen to music are the subject of research in social pharmacology and

music therapy Music therapy, an allied health profession, "is the clinical and evidence-based use of music interventions to accomplish individualized goals within a therapeutic relationship by a credentialed professional who has completed an approved music t ...

Psychoactive effects

In music

See also

References

Further reading