The discrimination of marijuana intoxication.
R O Pihl, P Hickcox, L Costa
Journal of Clinical Psychology July 1977 DOI: 10.1002/1097-4679(197707)33:3<908::aid-jclp2270330363>3.0.co;2-i (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Observational study Peer reviewed |
|---|---|
| Sample size | 40 |
| Population | 40 observers (20 male, 20 female) who watched videotapes of four males interacting under different drug conditions |
| Interventions | Coltsfoot Placebo Marijuana low dose Marijuana high dose |
| Topics | Cannabis |
| Key findings | Observers accurately detected intoxication in the high-dose marijuana condition. Marijuana-experienced observers were more successful at detecting intoxication levels, while observer sex was not significant. The authors discuss the behaviors used to discriminate intoxication and the implications for defining intoxication. |
Abstract
Forty Ss, 20 males and 20 females, observed a videotape that showed four males interacting in a social setting under four different drug conditions; coltsfoot, placebo, marijuana low dose, and marijuana high dose. The observers attempted to discriminate the level of intoxication of the four males in each condition. The observers accurately detected the level of intoxication in the high dose condition. While marijuana experienced users were more successful in detecting levels of intoxication, the sex of the observer was not significant. Behaviors used to discriminate intoxication and the implications of these results to defining intoxication are discussed.
Comparable studies
Other observational and cohort studies on cannabis, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| High-potency cannabis and the risk of psychosis People with first episode of psychosis and healthy controls from the local population | 2009 | Case-control study | n = 454 |
| Ayahuasca-Assisted Therapy for Addiction: Results from a Preliminary Observational Study in Canada Rural aboriginal population | 2013 | Observational study | |
| Impaired cognitive performance in drug free users of recreational ecstasy (MDMA) Otherwise healthy young people | 2000 | Observational | |
| Continued cannabis use and risk of incidence and persistence of psychotic symptoms: 10 year follow-up cohort study Individuals from the general population in Germany aged 14-24 at baseline | 2011 | Observational cohort | n = 1,923 |
| Cannabis-induced psychosis and subsequent schizophrenia-spectrum disorders: follow-up study of 535 incident cases Patients treated for cannabis-induced psychotic symptoms in Denmark between 1994 and... | 2005 | Observational cohort | n = 535 |