Related Experiment Video
Updated: May 21, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Societal images of Cannabis use: comparing three countries
John A Cunningham1, Jan Blomqvist, Anja Koski-Jännes
1The Centre for Addiction and Mental Health & University of Toronto, 33 Russell Street, Toronto, ON, M5S 2S1, Canada. John_Cunningham@camh.net.
Background:
Differences in beliefs about Cannabis were compared between Canada, Sweden and Finland using nationally representative population surveys containing similar items.
Findings:
Compared to Finnish and Swedish respondents, Canadians were both more likely to have tried Cannabis and to view Cannabis as a less serious problem for society.
Conclusions:
These findings emphasize the extent to which views about Cannabis can vary. It is possible that views about Cannabis are, at least in part, a social construction influenced by media, social policy and exposure to the drug that varies from country to country.
Related Concept Videos
Hallucinogens and Psychedelics
Marijuana, derived from the dried leaves and flowers of the hemp plant, contains delta-9-tetrahydrocannabinol (THC)...
An Overview of Psychoactive Drugs
Stimulants such as cocaine, amphetamines, and nicotine enhance brain activity, leading to increased alertness, attention, and energy. These drugs typically raise heart rate, blood pressure, and body temperature. While they can induce feelings of euphoria, their misuse can result in severe health...
Drug Control Governance: Regulatory Bodies and Their Impact
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
Altered States of Awareness
The ingestion of substances like stimulants or hallucinogens leads to chemical alterations in the brain that...
CNS Stimulants: Psychedelic Agents

