Effects of substance use on monetary delay discounting among people who use stimulants with and without HIV: An ecological momentary assessment study.
Exploration of the real-time relationship between substance use and delay discounting may reveal potential mechanisms driving high-risk behaviors. We conducted an ecological momentary assessment (EMA) study to investigate the effects of substance use on delay discounting in a sample of people who use stimulants (HIV+: 30; HIV-: 34). Participants completed multiple EMAs throughout the day for 28 days. The EMAs collected data on delay discounting and substance use (time since last substance use and level of intoxication). Delay discounting was assessed using a brief Monetary Choice Questionnaire (MCQ). Analyses were conducted using linear mixed effects modeling. Most participants (99.1%) used cocaine as their primary stimulant. Among participants without HIV, MCQ score remained relatively stable during the first 2 hr after stimulant use, followed by an increase during 2-6 hr (p < .05), before decreasing again. For alcohol and marijuana, the MCQ score was stable during the first 4 hr after use, with a sharp increase at 4-6 hr (p < .05), before decreasing again. Among participants with HIV, there were no changes in MCQ score as a function of time since recent substance use. These findings provide evidence of a plausible connection between delay discounting and acute withdrawal that may have relevance for risky behaviors. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Related Subject Headings
- Substance-Related Disorders
- Substance Abuse
- Risk-Taking
- Humans
- HIV Infections
- Ecological Momentary Assessment
- Delay Discounting
- 5203 Clinical and health psychology
- 5202 Biological psychology
- 3214 Pharmacology and pharmaceutical sciences
Citation
Published In
DOI
EISSN
Publication Date
Volume
Issue
Start / End Page
Location
Related Subject Headings
- Substance-Related Disorders
- Substance Abuse
- Risk-Taking
- Humans
- HIV Infections
- Ecological Momentary Assessment
- Delay Discounting
- 5203 Clinical and health psychology
- 5202 Biological psychology
- 3214 Pharmacology and pharmaceutical sciences