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State impulsivity and substance use: A systematic review and meta-analysis protocol.
Ashmita Mazumder1, Suzanne Erb1, Marc A Fournier1
1Department of Psychology, University of Toronto Scarborough, Scarborough, Ontario, Canada.
Plos One
|April 7, 2026
Summary
This meta-analysis synthesizes research on everyday impulsivity and substance use. It quantifies the association between fluctuating impulsivity and alcohol, cannabis, and tobacco use, identifying key influencing factors.
Area of Science:
- Psychology
- Neuroscience
- Public Health
Background:
- Extensive literature documents the link between substance use and impulsivity.
- Recent research shifts focus from trait impulsivity to its moment-to-moment expression in daily life.
- Existing reviews primarily address trait-level impulsivity, limiting understanding of real-world contexts.
Purpose of the Study:
- To conduct a comprehensive meta-analysis synthesizing findings on everyday impulsivity and substance use.
- To quantify the strength of the association between everyday impulsivity and alcohol, cannabis, and tobacco use.
- To identify key moderators influencing this relationship, including substance type, sample characteristics, and methodology.
Main Methods:
- Systematic search of major databases (PsycINFO, PubMed, Web of Science) for published and unpublished studies.
- Inclusion of studies reporting associations between everyday impulsivity and alcohol, cannabis, or tobacco use.
- Application of random-effects models for pooled effect size estimation and subgroup/meta-regression analyses for moderator testing.
Main Results:
- (Pending completion of the meta-analysis) This section will present the synthesized findings on the association between everyday impulsivity and substance use.
- (Pending completion of the meta-analysis) This section will detail the quantified strength of the relationship across different substances and populations.
- (Pending completion of the meta-analysis) This section will report on identified moderators affecting the impulsivity-substance use link.
Conclusions:
- This meta-analysis will provide a comprehensive estimate of the association between everyday impulsivity and the use of alcohol, cannabis, and tobacco.
- Findings will enhance understanding of how fluctuating impulsivity influences substance use in real-world settings.
- Results will inform targeted interventions and prevention strategies for substance use disorders by highlighting the role of everyday impulsivity.
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