Related Experiment Video
Updated: Jul 29, 2026
07:30
Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Adult marijuana users seeking treatment
R S Stephens1, R A Roffman, E E Simpson
1Department of Psychology, Virginia Polytechnic Institute and State University, Blacksburg 24061-0436.
Journal of Consulting and Clinical Psychology
|December 1, 1993
Summary
This study examined adult marijuana users seeking cessation treatment. Findings show that individuals with co-occurring substance abuse experienced more severe marijuana consequences and psychological distress.
Area of Science:
- Addiction Medicine
- Clinical Psychology
- Substance Abuse Research
Background:
- Adult marijuana users often present with co-occurring substance use disorders.
- Understanding the characteristics of individuals seeking marijuana cessation is crucial for effective intervention development.
Purpose of the Study:
- To investigate the efficacy of attracting and intervening with adult marijuana users for cessation.
- To characterize individuals seeking marijuana cessation treatment, including co-occurring substance use and psychopathology.
Main Methods:
- Screened 382 adult marijuana users (290 men, 92 women) for a treatment-outcome study.
- Assessed marijuana use severity, general psychopathology, and co-occurring alcohol/other drug abuse.
- Compared outcomes between participants with and without co-occurring substance abuse.
Main Results:
- The well-educated, self-referred sample reported high frequency of marijuana use (79/90 days).
- A majority of participants exhibited clinical ranges for marijuana abuse severity and general psychopathology.
- Individuals with co-occurring substance abuse reported more severe marijuana consequences and psychological distress compared to those without.
Conclusions:
- Adult marijuana dependence warrants targeted clinical research.
- Co-occurring substance use complicates marijuana cessation outcomes and increases psychological distress.
- Effective interventions must address polysubstance use in marijuana-dependent adults.
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