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Related Experiment Videos

Simultaneous alcohol and cannabis expectancies predict simultaneous use.

Sara Smucker Barnwell1, Mitch Earleywine

  • 1VA Greater Los Angeles Healthcare System (GLA), Mail Code 116B, 11301 Wilshire Blvd, Los Angeles, CA 90073, USA. smucker@usc.edu

Substance Abuse Treatment, Prevention, and Policy
|October 13, 2006
PubMed
Summary

Simultaneous alcohol and cannabis use has unique risks. This study found that specific cognitive expectancies for using both drugs together accurately predict combined use, suggesting tailored interventions are needed.

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Area of Science:

  • Addiction research
  • Cognitive psychology
  • Public health

Background:

  • Simultaneous alcohol and cannabis use leads to greater negative consequences than individual drug use.
  • Cognitive expectancies influence future drug use and problems.
  • Little research exists on expectancies for combined alcohol and cannabis use.

Purpose of the Study:

  • To investigate unique cognitive expectancies underlying simultaneous alcohol and cannabis use.
  • To determine if these expectancies predict combined substance use.

Main Methods:

  • Survey of 2600 internet respondents recruited through online cannabis communities.
  • Utilized established measures of drug use and expectancies.
  • Introduced a novel measure for simultaneous drug use expectancies.

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Main Results:

  • Expectancies for simultaneous alcohol and cannabis use significantly predicted combined use.
  • These simultaneous expectancies offered predictive value beyond individual drug expectancies.

Conclusions:

  • Unique expectancies for simultaneous alcohol and cannabis use provide valuable insights.
  • Findings suggest implications for substance abuse assessment, treatment, and conceptualization of drug expectancies.
  • Policy and funding for substance abuse treatment should consider simultaneous use and its cognitive factors.