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Cannabis Use Characteristics Associated with Self-Reported Cognitive Function in a Nationally Representative U.S.

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Cannabis use is linked to poorer cognitive function, with some potential for recovery in former users. Specific use patterns can predict cognitive impairment, informing personalized treatment for cannabis use disorder.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Public Health

Background:

  • Increasing cannabis use and potency necessitate understanding its cognitive effects.
  • Long-term cannabis use is associated with executive function deficits.
  • Limited research exists on cognitive function persistence during abstinence and predictors of impairment.

Purpose of the Study:

  • To evaluate the association between cannabis use status (current, former, never) and self-reported cognition.
  • To investigate if cannabis use characteristics predict self-reported cognitive function.

Main Methods:

  • Utilized cross-sectional data from the National Epidemiological Survey on Alcohol and Related Conditions-III (NESARC-III).
  • Included 36,309 US adults surveyed between 2012-2013.
  • Employed Ordinary Least Squares regression analysis with Executive Function Index scales.

Main Results:

  • Current and former cannabis users reported significantly poorer cognition compared to never users.
  • Former users' self-reported cognition fell between current and never users.
  • Specific cannabis use characteristics predicted cognitive function in current and former users.

Conclusions:

  • Cannabis use appears linked to diminished cognitive function, though some recovery may occur after cessation.
  • Certain cannabis use characteristics are predictive of cognitive impairment.
  • Findings suggest implications for personalized treatment strategies in cannabis use disorder.