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Effects of substance use on monetary delay discounting among people who use stimulants with and without HIV: An ecological momentary assessment study.

Publication ,  Journal Article
Xu, Y; Towe, SL; Causey, ST; Dennis, PA; Meade, CS
Published in: Exp Clin Psychopharmacol
February 2022

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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Published In

Exp Clin Psychopharmacol

DOI

EISSN

1936-2293

Publication Date

February 2022

Volume

30

Issue

1

Start / End Page

39 / 50

Location

United States

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

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Xu, Y., Towe, S. L., Causey, S. T., Dennis, P. A., & Meade, C. S. (2022). Effects of substance use on monetary delay discounting among people who use stimulants with and without HIV: An ecological momentary assessment study. Exp Clin Psychopharmacol, 30(1), 39–50. https://doi.org/10.1037/pha0000423
Xu, Yunan, Sheri L. Towe, Shakiera T. Causey, Paul A. Dennis, and Christina S. Meade. “Effects of substance use on monetary delay discounting among people who use stimulants with and without HIV: An ecological momentary assessment study.Exp Clin Psychopharmacol 30, no. 1 (February 2022): 39–50. https://doi.org/10.1037/pha0000423.
Xu, Yunan, et al. “Effects of substance use on monetary delay discounting among people who use stimulants with and without HIV: An ecological momentary assessment study.Exp Clin Psychopharmacol, vol. 30, no. 1, Feb. 2022, pp. 39–50. Pubmed, doi:10.1037/pha0000423.

Published In

Exp Clin Psychopharmacol

DOI

EISSN

1936-2293

Publication Date

February 2022

Volume

30

Issue

1

Start / End Page

39 / 50

Location

United States

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