The inability of people with multiple sclerosis (MS) to accurately appraise their memory and executive function partly explains why they continue to smoke cannabis “despite objective evidence of the deleterious cognitive side effects of this behaviour,” suggests a Canadian study.
Supported in part by the Multiple Sclerosis Society of Canada, the study followed 40 people with M.S. for 28 days who reported smoking cannabis almost daily. With only cognitively impaired individuals taking part in the review, participants were assigned to a cannabis continuation (CC) or cannabis withdrawal (CW) group.
All subjects underwent neuropsychological tests for processing speed, memory and executive function both at baseline and Day 28, as well as self-reported cognitive functioning.
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