New Delhi: For long, a strong link has been suggested between marijuana use and psychosis. Now, study suggests that daily consumption of marijuana may increase an adolescent’s risk of having recurrent psychotic-like experiences by 159 per cent.
The psychotic-like experiences include the experiences of perceptual aberration — for example feeling that something external is part of their body — and thinking that they have been unjustly badly treated.
“Our findings confirm that becoming a more regular marijuana user during adolescence is, indeed, associated with a risk of psychotic symptoms,” said lead author Josiane Bourque, doctoral student at the Universite de Montreal (UdeM) in Canada.
The findings, published in the Journal of Child Psychology and Psychiatry, revealed that individuals who go on from consuming marijuana occasionally to abusing the substance once a week or as often as every day, may be at 159 per cent increased risk of developing psychosis-like experiences.
Marijuana use reduces a person’s ability to resist socially unacceptable behaviour in response to a particular stimulus.
The study results are based on a cohort of about 4,000 adolescents aged 13 years old from 31 high schools in the Greater Montreal area in Canada.