[Acute and chronic cognitive disorders caused by cannabis use].
Cannabis is currently the most commonly used illegal psychoactive substance amongst young people aged between 15 and 24, and it seems that 5% of this age group is addicted to it. Many research teams focused particularly on the cognitive disorders caused by cannabis use. Amongst the cognitive functions considered, memory-related, attention-related, psychomotor and motivation-related functions were proved deteriorated by acute and chronic cannabis use; a very important point, especially among teenagers, as possible alteration at the social and academic level could be the outcome. However studies on long-term and persistent cognitive effects haven't provided convergent conclusions. Methodological differences could partly affect these observations. Therefore it seems necessary to develop studies with larger samples.
Karila
Laurent
L
Département de psychiatrie et d'addictologie, hôpital universitaire Paul Brousse, 94804 Villejuif Cedex. laurent.karila@pbr.ap-hop-paris.fr
Vignau
Jean
J
Alter
Caroline
C
Reynaud
Michel
M
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002188:Cannabis / Q000009:adverse effects*; D003072:Cognition Disorders / Q000139:chemically induced*; D006801:Humans; D002189:Marijuana Abuse / Q000150:complications*; D012106:Research; D012306:Risk; D012307:Risk Factors; D012559:Schizophrenia / Q000139:chemically induced*; D013997:Time Factors