Marijuana Use Not Associated With Residual Cognitive Decline Later In Life: "Thursday, 12 January 2012
London, United Kingdom: Cannabis use does not appear to have residual adverse effects of cognition or memory, according to trial data published last week in the American Journal of Epidemiology.
Researchers at the Kings College, School of Medicine in London investigated the prospective association between self-reported illicit drug use and cognitive functioning during the mid-adult years. A total of 8,992 participants who were surveyed at 42 years of age in the National Child Development Study (1999-2000) were included in the study.
Authors analyzed data on three cognitive functioning measures (memory index, executive functioning index, and overall cognitive index) when the participants were 50 years of age (2008-2009). Multivariable regression analyses were performed to estimate the association between different illicit drug use measures at 42 years of age and cognitive functioning at 50 years of age."
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