Credit: Getty
Credit: Getty - An UdeM-led meta-review of scientific literature highlights several areas of cognition impaired by cannabis use, including problems concentrating and difficulties remembering and learning. Cannabis use leads to acute cognitive impairments that may continue beyond the period of intoxication, according to a systematic scientific review published today in Addiction and led by Alexandre Dumais , an associate clinical professor of psychiatry at Université de Montréal. The meta-review - a review of reviews - merged the findings of 10 meta-analyses representing more than 43,000 participants. The study found that cannabis intoxication leads to small to moderate cognitive impairments in areas such as: making decisions suppressing inappropriate responses learning through reading and listening the ability to remember what one reads or hears the time needed to complete a mental task. The damaging effects persist. These and other acute impairments mirror the residual effects documented for cannabis use, suggesting the damaging effects of cannabis begin while it's being consumed and persist beyond that period, said Dumais, who practices at the Institut national de psychiatrie légale Philippe-Pinel. "Our study enabled us to highlight several areas of cognition impaired by cannabis use including problems concentrating, as well as difficulties remembering and learning, which may have considerable impacts on users' daily lives," he said.
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