Effects of substance use on monetary delay discounting among people who use stimulants with and without HIV: An ecological momentary assessment study
Autor: | Sheri L. Towe, Shakiera T. Causey, Paul A. Dennis, Christina S. Meade, Yunan Xu |
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Rok vydání: | 2022 |
Předmět: |
Substance-Related Disorders
Ecological Momentary Assessment medicine.medical_treatment Human immunodeficiency virus (HIV) 030508 substance abuse HIV Infections PsycINFO medicine.disease_cause Drug usage Article 03 medical and health sciences Risk-Taking medicine Humans Pharmacology (medical) Pharmacology Delay discounting business.industry Ecology Stimulant Psychiatry and Mental health Delay Discounting Mixed effects Substance use 0305 other medical science business |
Zdroj: | Exp Clin Psychopharmacol |
ISSN: | 1936-2293 1064-1297 |
Popis: | 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) 2020 APA, all rights reserved). |
Databáze: | OpenAIRE |
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