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Johansen AN, Acuff SF, Strickland JC. Human laboratory models of reward in substance use disorder. Pharmacol Biochem Behav 2024; 241:173803. [PMID: 38843997 PMCID: PMC11223959 DOI: 10.1016/j.pbb.2024.173803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/30/2024] [Accepted: 06/01/2024] [Indexed: 06/15/2024]
Abstract
Human laboratory models in substance use disorder provide a key intermediary step between highly controlled and mechanistically informative non-human preclinical methods and clinical trials conducted in human populations. Much like preclinical models, the variety of human laboratory methods provide insights into specific features of substance use disorder rather than modelling the diverse causes and consequences simultaneously in a single model. This narrative review provides a discussion of popular models of reward used in human laboratory research on substance use disorder with a focus on the specific contributions that each model has towards informing clinical outcomes (forward translation) and analogs within preclinical models (backward translation). Four core areas of human laboratory research are discussed: drug self-administration, subjective effects, behavioral economics, and cognitive and executive function. Discussion of common measures and models used, the features of substance use disorder that these methods are purported to evaluate, unique issues for measure validity and application, and translational links to preclinical models and special considerations for studies wishing to evaluate homology across species is provided.
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Affiliation(s)
| | - Samuel F Acuff
- Recovery Research Institute, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Justin C Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, USA.
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2
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Pritschmann RK, Rung JM, Berry MS, Yurasek AM. Independent and concurrent cannabis use with alcohol, cigarettes, and other substances among college students: Rates and consequences. JOURNAL OF AMERICAN COLLEGE HEALTH : J OF ACH 2024; 72:1263-1270. [PMID: 35658020 PMCID: PMC9718891 DOI: 10.1080/07448481.2022.2076094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 04/06/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Objective: The purpose of this study was to examine patterns of concurrent cannabis and other substance use and their differential associations with cannabis-related problems and academic outcomes in college students. Participants: Participants were undergraduate students (N = 263; M age = 19.1 years; 61.2% female) who were eligible if they used cannabis at least 3 days in the past month (M = 10.1 days). Method: Substance use, academic-related outcomes, and measures of Cannabis Use Disorder (CUD) severity and problems were obtained in an online survey. Results: The five groups evaluated were cannabis-only users (5.3%), cannabis and alcohol (47.1%), cannabis, alcohol and cigarettes (16.7%), cannabis, alcohol and other substances (14.8%), or all-substances (16%). Cannabis-only and all-substance users reported using cannabis most frequently (ps ≤ .034), but only the latter reported greater CUD severity, problems, and poorer academic outcomes. Discussion: College student polysubstance users may be at increased risk for poorer outcomes compared to cannabis-only users and other groups.
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Affiliation(s)
- Ricarda K Pritschmann
- Department of Health Education and Behavior, University of Florida, Gainesville, Florida, USA
| | - Jillian M Rung
- Department of Health Education and Behavior, University of Florida, Gainesville, Florida, USA
- Department of Psychology, University of Florida, Gainesville, Florida, USA
- Department of Epidemiology, University of Florida, Gainesville, Florida, USA
| | - Meredith S Berry
- Department of Health Education and Behavior, University of Florida, Gainesville, Florida, USA
- Department of Psychology, University of Florida, Gainesville, Florida, USA
| | - Ali M Yurasek
- Department of Health Education and Behavior, University of Florida, Gainesville, Florida, USA
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3
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Gelino BW, Schlitzer RD, Reed DD, Strickland JC. A systematic review and meta-analysis of test-retest reliability and stability of delay and probability discounting. J Exp Anal Behav 2024; 121:358-372. [PMID: 38499476 PMCID: PMC11078611 DOI: 10.1002/jeab.910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 02/13/2024] [Indexed: 03/20/2024]
Abstract
In this meta-analysis, we describe a benchmark value of delay and probability discounting reliability and stability that might be used to (a) evaluate the meaningfulness of clinically achieved changes in discounting and (b) support the role of discounting as a valid and enduring measure of intertemporal choice. We examined test-retest reliability, stability effect sizes (dz; Cohen, 1992), and relevant moderators across 30 publications comprising 39 independent samples and 262 measures of discounting, identified via a systematic review of PsychInfo, PubMed, and Google Scholar databases. We calculated omnibus effect-size estimates and evaluated the role of proposed moderators using a robust variance estimation meta-regression method. The meta-regression output reflected modest test-retest reliability, r = .670, p < .001, 95% CI [.618, .716]. Discounting was most reliable when measured in the context of temporal constraints, in adult respondents, when using money as a medium, and when reassessed within 1 month. Testing also suggested acceptable stability via nonsignificant and small changes in effect magnitude over time, dz = 0.048, p = .31, 95% CI [-0.051, 0.146]. Clinicians and researchers seeking to measure discounting can consider the contexts when reliability is maximized for specific cases.
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Affiliation(s)
- Brett W. Gelino
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, US
| | - Rebekah D. Schlitzer
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, US
| | - Derek D. Reed
- Department of Applied Behavioral Science, University of Kansas, Lawrence, KS, USA
- Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, KS, USA
| | - Justin C. Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, US
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Gebru NM, James TG, Ahn S, Cheong J, Berry MS, Cook RL, Leeman RF. A Behavioral Economic Examination of Sexual Behaviors in the Era of Pre-exposure Prophylaxis via Explanatory Sequential Mixed Methods. ARCHIVES OF SEXUAL BEHAVIOR 2024; 53:1541-1559. [PMID: 38472604 PMCID: PMC11124550 DOI: 10.1007/s10508-024-02822-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 11/28/2023] [Accepted: 01/24/2024] [Indexed: 03/14/2024]
Abstract
Pre-exposure prophylaxis (PrEP) use may be associated with condom use decisions. The current investigation examined sexual decision-making in the context of PrEP among young adult men who have sex with men (MSM) between 18 and 30 years old, using an explanatory sequential mixed methods design. For the quantitative aim, 99 MSM currently taking PrEP (i.e., PrEP-experienced) and 140 MSM not currently taking PrEP (i.e., PrEP-naive) completed an online survey, including the Sexual Delay Discounting Task (SDDT), which captures likelihood of condom use. For the qualitative aim, 15 people from each group were interviewed about their (1) conceptualizations of risky sex and (2) ways they manage their sexual risk. Participants were, on average, 25.69 years old (SD = 3.07) and 64% White. Results from the quantitative aim revealed, controlling for covariates, PrEP-experienced participants exhibited significantly lower likelihood of (1) using an immediately available condom and (2) waiting for a delayed condom (i.e., sexual delay discounting) compared to PrEP-naive participants. Qualitative themes explaining what young adult MSM consider to be risky sex included: (1) any sex as risky sex, (2) risky sex as "sex without a conversation," and (3) risky sex as sex with risk for physical harm. Themes on ways young adult MSM manage sexual risk were classified as proactive, reactive, and passive. Results suggest that PrEP use is related to condom use decisions. Taken together, quantitative differences in sexual delay discounting, but qualitatively similar conceptualizations and management of risky sex, suggest that the SDDT may be a useful tool in sex research to capture processes (i.e., delay discounting) underlying sexual decision-making that may be missed by traditional self-reports. Implications of results, including potentially providing (good quality) condoms with every PrEP prescription, and future research topics are discussed.
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Affiliation(s)
- Nioud Mulugeta Gebru
- Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University School of Public Health, 121 S. Main St., Box G-S121-3, Providence, RI, 02912, USA.
- Department of Health Education and Behavior, University of Florida, Gainesville, FL, USA.
- Southern HIV and Alcohol Research Consortium (SHARC), University of Florida, Gainesville, FL, USA.
| | - Tyler G James
- Department of Family Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Seungjun Ahn
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - JeeWon Cheong
- Department of Health Education and Behavior, University of Florida, Gainesville, FL, USA
| | - Meredith S Berry
- Department of Health Education and Behavior, University of Florida, Gainesville, FL, USA
- Department of Psychology, University of Florida, Gainesville, FL, USA
| | - Robert L Cook
- Southern HIV and Alcohol Research Consortium (SHARC), University of Florida, Gainesville, FL, USA
- Department of Epidemiology, University of Florida, Gainesville, FL, USA
| | - Robert F Leeman
- Department of Health Education and Behavior, University of Florida, Gainesville, FL, USA
- Department of Health Sciences, Northeastern University, Boston, MA, USA
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Hawley WR, Morrow GD. Been There, Done That: The Impact of the Novelty of Penile Vaginal Intercourse (PVI) and Participants' Sex on Delay and Probability Discounting of PVI. JOURNAL OF SEX RESEARCH 2024:1-9. [PMID: 38517453 DOI: 10.1080/00224499.2024.2328250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Delay and probability discounting tasks are useful for understanding aspects of decision making. The current study, which employed a mixed-model design to assess discounting of penile-vaginal intercourse (PVI), was conducted online with male and female participants recruited from Prolific (N = 300; mean age = 34.1 years). Results of the novel delay and probability discounting tasks indicated that as the delay to PVI increased, or as PVI became less certain to occur, participants were instead more likely to choose to receive oral sex, the reward initially indicated as less desirable. Having previously engaged in PVI, however, enhanced this reversal of preferences on both tasks, which suggests PVI loses some of its value when no longer novel. Males and females similarly discounted PVI on the delay discounting task, which suggests biological sex may not impact the propensity to wait for a preferred sexual behavior. On the probability discounting task, however, males were more averse to a reduced probability of PVI occurring and instead opted for receiving oral sex. The sexual behavior discounting tasks developed in the current study, and ones like it, may prove useful for identifying preferences in sexual behaviors, and ultimately enhance sexual and relationship satisfaction.
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Affiliation(s)
- Wayne R Hawley
- Department of Psychology, Counseling and Art Therapy, Pennsylvania Western University- Edinboro
| | - Gregory D Morrow
- Department of Psychology, Counseling and Art Therapy, Pennsylvania Western University- Edinboro
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Anderson MAB, Cox DJ, Dallery J. Effects of economic context and reward amount on delay and probability discounting. J Exp Anal Behav 2023; 120:204-213. [PMID: 37311053 DOI: 10.1002/jeab.868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 05/07/2023] [Indexed: 06/15/2023]
Abstract
Steep delay and shallow probability discounting are associated with myriad problem behaviors; thus, it is important to understand factors that influence the degree of discounting. The present study evaluated the effects of economic context and reward amount on delay and probability discounting. Two hundred thirteen undergraduate psychology students completed four delay- or probability-discounting tasks. Participants were exposed to hypothetical narratives involving four bank amounts ($750, $12,000, $125,000, and $2,000,000). The delayed/probabilistic amount was $3,000 for the two smaller bank amounts and $500,000 for the two larger bank amounts. The discounting tasks included five delays to, or probabilities of, receipt of the larger amount. The area under the empirical discounting function was calculated for each participant. Participants discounted delayed and uncertain outcomes more when the bank amount was smaller than the outcome (i.e., the economic context was low). Participants discounted the delayed larger amounts less than delayed smaller amounts, even when the relative economic context was the same. In contrast, probability discounting did not differ across magnitudes, which suggests that economic context may attenuate the magnitude effect in probability discounting. The results further highlight the importance of considering the economic context in delay and probability discounting.
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Ingram KM, Collado A, Felton JW, Yi R. A Preliminary Experimental Study of Self-Objectification and Risky Sex Behavior Among a University Sample of Cisgender Women in the U.S. ARCHIVES OF SEXUAL BEHAVIOR 2023; 52:1643-1651. [PMID: 36757517 DOI: 10.1007/s10508-022-02510-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 12/15/2022] [Accepted: 12/15/2022] [Indexed: 06/18/2023]
Abstract
Self-objectification is associated with a number of negative mental and behavioral outcomes. Though previous research has established associations between self-objectification and risky sex, no study to date has examined whether self-objectification affects propensity to engage in risky sex. The current research employed an experimental design to examine the effect of heightened self-objectification on a laboratory analog of risky sex (n = 181). We observed that when college-attending women experienced a heightened state of self-objectification, they were more likely to engage in sex without a condom and less likely to wait to use a condom with a highly desirable partner. Given the frequency of intended and unintended objectifying messages that young women face, this increase in willingness to engage in risky sex behavior represents a consequential health concern.
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Affiliation(s)
- Katherine M Ingram
- School of Education, University of North Carolina at Chapel Hill, 100 E Cameron Ave., Chapel Hill, NC, 27514, USA.
| | - Anahi Collado
- Renée Crown Wellness Institute- University of Colorado, Boulder, CO, USA
| | - Julia W Felton
- Division of Public Health, Michigan State University, East Lansing, MI, USA
| | - Richard Yi
- Department of Psychology, University of Kansas, Lawrence, KS, USA
- Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, KS, USA
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Berry MS, Naudé GP, Johnson PS, Johnson MW. The Blinded-Dose Purchase Task: assessing hypothetical demand based on cocaine, methamphetamine, and alcohol administration. Psychopharmacology (Berl) 2023; 240:921-933. [PMID: 36869212 PMCID: PMC10006272 DOI: 10.1007/s00213-023-06334-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 01/30/2023] [Indexed: 03/05/2023]
Abstract
RATIONALE Behavioral economic drug purchase tasks quantify the reinforcing value of a drug (i.e., demand). Although widely used to assess demand, drug expectancies are rarely accounted for and may introduce variability across participants given diverse drug experiences. OBJECTIVES Three experiments validated and extended previous hypothetical purchase tasks by using blinded drug dose as a reinforcing stimulus, and determined hypothetical demand for experienced effects while controlling for drug expectancies. METHODS Across three double-blind, placebo-controlled, within-subject experiments, cocaine (0, 125, 250 mg/70 kg; n=12), methamphetamine (0, 20, 40 mg; n=19), and alcohol (0, 1 g/kg alcohol; n=25) were administered and demand was assessed using the Blinded-Dose Purchase Task. Participants answered questions regarding simulated purchasing of the blinded drug dose across increasing prices. Demand metrics, subjective effects, and self-reported real-world monetary spending on drugs were evaluated. RESULTS Data were well modeled by the demand curve function, with significantly higher intensity (purchasing at low prices) for active drug doses compared to placebo for all experiments. Unit-price analyses revealed more persistent consumption across prices (lower α) in the higher compared to lower active dose condition for methamphetamine (a similar non-significant finding emerged for cocaine). Significant associations between demand metrics, peak subjective effects, and real-world spending on drugs also emerged across all experiments. CONCLUSIONS Orderly demand curve data revealed differences across drug and placebo conditions, and relations to real-world measures of drug spending, and subjective effects. Unit-price analyses enabled parsimonious comparisons across doses. Results lend credence to the validity of the Blinded-Dose Purchase Task, which allows for control of drug expectancies.
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Affiliation(s)
- Meredith S Berry
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA.
- Department of Health Education and Behavior, University of Florida, Yon Hall Room 031, Gainesville, FL, 32611, USA.
| | - Gideon P Naudé
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
| | - Patrick S Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
| | - Matthew W Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA.
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Gebru NM, Kalkat M, Strickland JC, Ansell M, Leeman RF, Berry MS. Measuring Sexual Risk-Taking: A Systematic Review of the Sexual Delay Discounting Task. ARCHIVES OF SEXUAL BEHAVIOR 2022; 51:2899-2920. [PMID: 35838897 PMCID: PMC9555011 DOI: 10.1007/s10508-022-02355-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
The Sexual Delay Discounting Task (SDDT; Johnson & Bruner, 2012) is a behavioral economic task that assesses sexual risk-taking by measuring likelihood of immediate and delayed condom use. The SDDT is ecologically valid and has been used to test effects of various substances on sexual risk-taking. However, considerable variety in implementation, analysis, and reporting of the SDDT may limit rigor and reproducibility of findings. The current review synthesized studies that used the SDDT to evaluate these possible variabilities systematically. A two-step search (citation-tracking and keyword-based search) was conducted to identify studies that met inclusion criteria (i.e., used the SDDT). Eighteen peer-reviewed articles met inclusion criteria. The SDDT has been implemented primarily in three populations: individuals who use cocaine, men who have sex with men, and college students. Comparable results across diverse populations support the SDDT's validity. A few studies administered substances before the SDDT. Evidence suggests that while cocaine and alcohol increased sexual risk-taking under some conditions, buspirone decreased preference for immediate condomless sex. There was also heterogeneity in the determination of data orderliness (i.e., outliers) and inconsistent reporting of task design and analysis. Considerable differences present in methodologic approaches could influence results. Reducing variation in the administration, analysis, and reporting of the SDDT will enhance rigor and reproducibility and maximize the task's tremendous potential.
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Affiliation(s)
- Nioud Mulugeta Gebru
- Department of Health Education and Behavior, Center for Behavioral Economic Health Research;, University of Florida, P.O. Box 118210, Gainesville, FL, 32611, USA.
- Clinical and Translational Science Institute, University of Florida, Gainesville, FL, USA.
| | - Meher Kalkat
- Department of Health Education and Behavior, Center for Behavioral Economic Health Research;, University of Florida, P.O. Box 118210, Gainesville, FL, 32611, USA
| | - Justin C Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Margaret Ansell
- Department of Health Education and Behavior, Center for Behavioral Economic Health Research;, University of Florida, P.O. Box 118210, Gainesville, FL, 32611, USA
| | - Robert F Leeman
- Department of Health Education and Behavior, Center for Behavioral Economic Health Research;, University of Florida, P.O. Box 118210, Gainesville, FL, 32611, USA
- Yale School of Medicine, New Haven, CT, USA
| | - Meredith S Berry
- Department of Health Education and Behavior, Center for Behavioral Economic Health Research;, University of Florida, P.O. Box 118210, Gainesville, FL, 32611, USA
- Department of Psychology, University of Florida, Gainesville, FL, USA
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Jarmolowicz DP, LeComte RS, Lemley SM. A multiple-stimulus-without-replacement assessment for sexual partners: Test-retest stability. J Appl Behav Anal 2022; 55:1059-1067. [PMID: 35739612 DOI: 10.1002/jaba.936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 04/30/2022] [Indexed: 11/08/2022]
Abstract
The stability of stimulus preference assessment results is an important consideration when using the identified stimuli in treatments and/or additional experiments. Prior research has demonstrated that the preference hierarchies identified by the multiple stimulus without replacement (MSWO) preference assessment are generally stable over time. This stability has been demonstrated with tangible and edible items, yet the extent to which that stability can be expected for other types of stimuli remains unknown. The current study tested the 2-month stability of the MSWO preference assessment in the context of college students' preferred sexual partners. Adequate stability was shown in most cases, suggesting generality of the stability of preference across tasks, populations, and stimuli.
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Affiliation(s)
| | | | - Shea M Lemley
- Center for Technology and Behavioral Heath, Geisel School of Medicine, Dartmouth College
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Berry MS, Bruner NR, Herrmann ES, Johnson PS, Johnson MW. Methamphetamine administration dose effects on sexual desire, sexual decision making, and delay discounting. Exp Clin Psychopharmacol 2022; 30:180-193. [PMID: 32986459 PMCID: PMC8862632 DOI: 10.1037/pha0000398] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Correlational evidence has linked methamphetamine use and HIV sexual risk behavior, but the direct effects of methamphetamine on sexual desire and sexual decision making in humans have not been tested. This study was designed to test the effect of methamphetamine administration on sexual desire and hypothetical condom-use decisions as measured by the Sexual Delay Discounting Task. Recreational stimulant users (n = 19) participated in this within-subject, placebo-controlled study comparing the effects of 0 mg, 20 mg, and 40 mg of oral methamphetamine. Compared to placebo, methamphetamine caused dose-related and time-related increases in a single-item sexual desire rating and some standard stimulant abuse liability ratings, as well as dose-related increases in the Sexual Arousal and Desire Inventory (SADI; a multidimensional scale capturing positive and negative aspects of desire/arousal). However, methamphetamine caused no significant mean differences in likelihood of condom use within the Sexual Delay Discounting Task or the Monetary Discounting Task. SADI scores were negatively correlated with change from placebo in condom use likelihood in the Sexual Delay Discounting Task for some partner conditions (i.e., decreased reported likelihood of condom use in participants who experienced increased desire/arousal and vice versa). These mixed results may be consistent with methamphetamine's role as both a treatment for attention-deficit/hyperactivity disorder and as a drug of abuse associated with increased delay discounting, and they suggest that methamphetamine's effects on discounting may be modulated by the reinforcing properties of what is being discounted. Delay discounting may be an understudied element of risky sexual decision making, particularly among individuals who use methamphetamine. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Affiliation(s)
- Meredith S. Berry
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Natalie R. Bruner
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Evan S. Herrmann
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Patrick S. Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Matthew W. Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
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Xu Y, Towe SL, Causey ST, Dennis PA, Meade CS. 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 2022; 30:39-50. [PMID: 32757596 PMCID: PMC8407024 DOI: 10.1037/pha0000423] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
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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Affiliation(s)
- Yunan Xu
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA,Corresponding author: Yunan Xu, PhD, Duke University, Box 102848, Durham, NC 27710, , tel. 919-681-9289
| | - Sheri L. Towe
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Shakiera T. Causey
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Paul A. Dennis
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA,Research and Development Service, Durham Veterans Affairs Medical Center, Durham, NC, USA
| | - Christina S. Meade
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
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Johnson MW, Strickland JC, Herrmann ES, Dolan SB, Cox DJ, Berry MS. Sexual discounting: A systematic review of discounting processes and sexual behavior. Exp Clin Psychopharmacol 2021; 29:711-738. [PMID: 33001694 PMCID: PMC8977071 DOI: 10.1037/pha0000402] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Behavioral processes underlying sexual behavior are important for understanding normal human functioning and risk behavior leading to sexually transmitted infections (STIs). This systematic review examines delay and probability discounting in human sexual behavior through synthesis of 50 peer-reviewed, original research articles. Sixteen studies focusing exclusively on monetary delay discounting found small effect size positive correlations with sexual risk behaviors. Eleven studies examined delay or probability discounting of sexual behavior itself using tasks that varied duration, frequency, or quality of sex to determine value. Results show delay and uncertainty of sex causes systematic decreases in value. These studies also show consistent medium effect size relationships between sexual discounting measures and sexual health and substance use, supporting utility above and beyond monetary discounting. Twenty-three studies have modeled clinically relevant decision-making, examining effects of delay until condom availability and STI contraction probability on condom use. Observational and experimental designs found condom-use discounting is elevated in high-risk substance use populations, is sensitive to context (e.g., partner desirability), and is more robustly related to sexual risk compared with monetary discounting or condom use decisions when no delay/uncertainty was involved. Administering cocaine, alcohol, and, for some participants, methamphetamine increased condom-use discounting with minimal effect on monetary discounting or condom use when no delay/uncertainty was involved. Reviewed studies robustly support that sexual behavior is highly dependent on delay and probability discounting, and that these processes strongly contribute to sexual risk. Future research should exploit these systematic relationships to design behavioral and pharmacological approaches to decrease sexual risk behavior. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
- Matthew W. Johnson
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Justin C. Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | | | - Sean B. Dolan
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - David J. Cox
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Meredith S. Berry
- Human Behavioral Pharmacology and Decision-Making Laboratory, Department of Health Education and Behavior, University of Florida, Gainesville, FL, United States
- Department of Psychology, University of Florida, Gainesville, FL, United States
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14
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Strickland JC, Lee DC, Vandrey R, Johnson MW. A systematic review and meta-analysis of delay discounting and cannabis use. Exp Clin Psychopharmacol 2021; 29:696-710. [PMID: 32309968 PMCID: PMC8376219 DOI: 10.1037/pha0000378] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Delay discounting reflects the systematic reduction in the value of a consequence by delay to delivery. Theoretical and empirical work suggests that delay discounting is a key behavioral mechanism underlying substance use disorder. Existing work on cannabis use, however, is mixed with many studies reporting null results. The purpose of this review was to provide an in-depth assessment of the association between delay discounting and cannabis use. We conducted metaregression analyses to determine the omnibus correlation between delay discounting and cannabis use, and to evaluate task-based and sample-based moderators. Studies included evaluated an association between delay discounting and cannabis quantity-frequency or severity measures in human participants (27 studies, 61 effect sizes, 24,782 participants). A robust variance estimation method was used to account for dependence among effect sizes. A significant, but small, omnibus effect was observed (r = .082) in which greater cannabis use frequency or severity was associated with greater discounting. Incentive structure and outcome type were each significant moderators in a multiple moderator model such that incentivized tasks correlated with severity measures showed stronger associations (r = .234) than hypothetical tasks correlated with quantity-frequency measures (r = .029). Comparisons to historic effect size data supported the hypothesis that, at present, the relationship between cannabis use and delay discounting appears empirically smaller than for other substances. Future work should explore theoretical rationales explaining this modest relationship involving cannabis use and delay discounting, such as reflecting the smaller magnitude of perceived long-term clinical outcomes associated with cannabis compared to other substances. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
| | - Dustin C Lee
- Department of Psychiatry and Behavioral Sciences
| | - Ryan Vandrey
- Department of Psychiatry and Behavioral Sciences
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15
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Thorpe S, Ware S, Tanner AE, Kugler KC, Guastaferro KM, Milroy JJ, Wyrick DL. Sexual sensation seeking, hookups, and alcohol consumption among first-year college students. JOURNAL OF AMERICAN COLLEGE HEALTH : J OF ACH 2021; 69:897-904. [PMID: 31995458 PMCID: PMC7387156 DOI: 10.1080/07448481.2020.1713136] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 12/29/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To explore sexual sensation seeking (SSS) among an ethnically-diverse sample of first-year college students and their hookup behaviors. PARTICIPANTS 1,480 first-year college students who hooked up in the last 30 days were recruited from four universities in 2016. METHODS Students completed an online survey before completing an online STI and alcohol prevention intervention. RESULTS Male and sexual minority students had significantly higher SSS scores compared to female and heterosexual students respectively. Students with higher SSS scores were less likely to report condom use at last vaginal and anal hookup, more likely to hookup under the influence of alcohol and participate in a wide range of sexual behaviors. There were no significant mean differences in SSS scores by level of intoxication during their last hookup. CONCLUSION These findings highlight the role of SSS in predicting sexual risk behaviors of first-year college students and the overall low SSS scores among this sample.
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Affiliation(s)
- Shemeka Thorpe
- The University of North Carolina at Greensboro, Department of Public Health Education, Greensboro, North Carolina
| | - Samuella Ware
- The University of North Carolina at Greensboro, Department of Public Health Education, Greensboro, North Carolina
| | - Amanda E. Tanner
- The University of North Carolina at Greensboro, Department of Public Health Education, Greensboro, North Carolina
| | - Kari C. Kugler
- The Pennsylvania State University, Department of Biobehavioral Health, University Park, Pennsylvania
| | - Kate M. Guastaferro
- The Pennsylvania State University, Methodology Center, University Park, Pennsylvania
| | - Jeffrey J. Milroy
- The University of North Carolina at Greensboro, Department of Public Health Education, Greensboro, North Carolina
| | - David L. Wyrick
- The University of North Carolina at Greensboro, Department of Public Health Education, Greensboro, North Carolina
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16
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Wongsomboon V, Cox DJ. Sexual Arousal Discounting: Devaluing Condom-Protected Sex as a Function of Reduced Arousal. ARCHIVES OF SEXUAL BEHAVIOR 2021; 50:2717-2728. [PMID: 33483850 DOI: 10.1007/s10508-020-01907-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 12/05/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Sexual discounting is a growing area of research aimed at identifying factors that reduce people's reported willingness to have safe sex. One commonly reported reason for condom non-use is that a condom reduces sexual arousal. However, researchers have yet to isolate the specific role of sexual arousal using a sexual discounting framework. We extended past research by measuring how sexual arousal reduced people's willingness to have condom-protected sex ("sexual arousal discounting": SAD). College students (n = 379; 67.5% females) selected partners they most wanted and least wanted to have sex with and were randomized to one of two groups. In one group, participants rated their willingness to have sex with a condom if their own arousal decreased (from 100 to 10%) from condom use. The other group completed the same task except their partner's arousal decreased from condom use instead of their own. We observed a three-way interaction between arousal levels, most versus least desirable partners, and self versus partner groups. Participants' willingness to have condom-protected sex systematically reduced as a function of sexual arousal. This was observed more with the most (vs. least) desirable partner and in the self-arousal (vs. partner-arousal) group but only when the partner was their least desirable. Men (vs. women) displayed more arousal discounting but only with the most desirable partner. Finally, higher arousal discounting was associated with lower safe-sex self-efficacy and higher reported frequency of unprotected sex in the past 3 months. This study demonstrates how reduced sexual arousal from condom use can be measured as a factor influencing sexual risk-taking.
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Affiliation(s)
- Val Wongsomboon
- Department of Psychology, University of Florida, 945 Center Dr., Gainesville, FL, 32603, USA.
| | - David J Cox
- Department of Psychiatry and Behavioral Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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17
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Harsin JD, Gelino BW, Strickland JC, Johnson MW, Berry MS, Reed DD. Behavioral economics and safe sex: Examining condom use decisions from a reinforcer pathology framework. J Exp Anal Behav 2021; 116:149-165. [PMID: 34227121 DOI: 10.1002/jeab.706] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 04/08/2021] [Accepted: 06/06/2021] [Indexed: 12/24/2022]
Abstract
Condom use substantially reduces unwanted pregnancies and sexually transmitted infections. While condom availability is a significant public health priority, effects of condom availability constraints remain relatively under-researched. The limited research on condom availability suggests two major barriers to use: (1) effort/costs and (2) delay to access. To date, we are aware of no study that explores both demand for and discounting of condom availability; the focus of this study was to account for condom decisions using a reinforcement pathology framework. This study used a condom purchase task and the Sexual Delay Discounting Task to quantify behavioral economics of condom use. Low sexual discounting was associated with higher willingness to engage unprotected sex. Demand metrics suggest participants indicating abstinence at condom breakpoint were willing to pay nearly double for condoms relative to individuals indicating unprotected sex at breakpoint. Finally, we grouped participants into reinforcement pathology risk groups based on their discounting and demand indices; these groups significantly differed in self-reported number of sexual partners, unprotected sexual partners, and Sexual Desire scores. This study demonstrates the value of behavioral economic approaches to public health concerns, and further underscores the translational benefits of quantitative metrics to shed novel light on risky health decisions.
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Affiliation(s)
- Joshua D Harsin
- Department of Applied Behavioral Science, University of Kansas.,Cofrin Logan Center for Addiction Research and Treatment
| | - Brett W Gelino
- Department of Applied Behavioral Science, University of Kansas.,Cofrin Logan Center for Addiction Research and Treatment
| | - Justin C Strickland
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Matthew W Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Meredith S Berry
- Department of Health Education and Behavior, University of Florida.,Department of Psychology, University of Florida
| | - Derek D Reed
- Department of Applied Behavioral Science, University of Kansas.,Cofrin Logan Center for Addiction Research and Treatment
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18
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Anderson MAB, Dallery J. Effects of Amount on Probability Discounting: A Replication and Extension. Behav Processes 2021; 190:104448. [PMID: 34174370 DOI: 10.1016/j.beproc.2021.104448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/28/2021] [Accepted: 06/21/2021] [Indexed: 11/19/2022]
Abstract
We evaluated two quantitative models that attempt to account for the effects of amount on probability discounting. Sixty-four undergraduate psychology students completed four probability discounting tasks that differed in the amount of the probabilistic outcome ($20, $3,000, $50,000, and $500,000). In an amount-independent hyperboloid model, the exponent (s) systematically increased with reward amount. These systematic changes were not explained by the model. Myerson et al. (2011) reasoned that s increases as a power function of the amount of the probabilistic reward. We found support for the amount-dependent hyperboloid model at the aggregate and individual levels of analysis. The results replicate and extend previous research and suggest that the value function of a probabilistic outcome is weighted by, or depends on, its amount.
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19
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Dolan SB, Johnson MW, Dunn KE, Huhn AS. The discounting of death: Probability discounting of heroin use by fatal overdose likelihood and drug purity. Exp Clin Psychopharmacol 2021; 29:219-228. [PMID: 34264734 PMCID: PMC8524386 DOI: 10.1037/pha0000486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
As fatal overdoses from synthetic opioids continue to rise, we need to understand decision-making processes underlying heroin and synthetic opioid use. This study evaluated the influence of sample impurity and fatal overdose risk on hypothetical heroin use. Individuals who currently use heroin (n = 69) were recruited online. Participants completed two probability-discounting tasks evaluating the likelihood of using a sample of heroin based on the likelihood of sample impurity and likelihood of fatal overdose, where greater discounting represented reduced use likelihood. Prior to completing the probability-discounting tasks, participants were randomized to read one of four prompts varying by the presence of information on heroin effects and active (e.g., fentanyl) or inert impurities. Influence of prompts on discounting processes and associations among probability-discounting measures, opioid use behaviors, and dependence severity were evaluated. Heroin use likelihood decreased with increased impurity or overdose risk and in a generally orderly fashion. Discounting was greater (i.e., reduced heroin use likelihood) when overdose risk, compared to sample impurity, was manipulated. Less discounting was associated with more severe opioid dependence. Discounting did not differ among prompts for either task. Individuals might adjust their heroin-use behavior to reduce harm with risk-related information. Greater discounting elicited by overdose relative to impurity risk suggests that equating adulteration and overdose risk is essential for harm reduction. Expanded access to drug checking services, which inform impurity and overdose risk, can reduce fatal overdoses. Due to fear of legal sanctions for these services, legislation and judicial decisions should explicitly protect these services. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
- Sean B Dolan
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Matthew W Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Kelly E Dunn
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Andrew S Huhn
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
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20
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Ménard AD, MacIntosh HB. Childhood Sexual Abuse and Adult Sexual Risk Behavior: A Review and Critique. JOURNAL OF CHILD SEXUAL ABUSE 2021; 30:298-331. [PMID: 33403939 DOI: 10.1080/10538712.2020.1869878] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 09/14/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Childhood sexual abuse (CSA) is a global problem with serious repercussions for survivors in various domains of adult interpersonal functioning, including sexual risk behavior. This review aimed to summarize findings from the recent literature on the connections between CSA and later adult sexual risk behaviors (e.g., unprotected intercourse, sexually transmitted infection [STSI] diagnosis). The sexual risk behaviors consistently associated with CSA were having sex under the influence of alcohol/substances and reports of concurrent sexual partners/infidelity. Notably, studies investigating the links between CSA and history of STI diagnosis and CSA and reports of unprotected sex (with the exception of samples comprised men who have sex with men) produced inconsistent findings. The methodological limitations of existing studies are considered and suggestions for future research are offered.
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21
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Strickland JC, Johnson MW. Rejecting impulsivity as a psychological construct: A theoretical, empirical, and sociocultural argument. Psychol Rev 2021; 128:336-361. [PMID: 32969672 PMCID: PMC8610097 DOI: 10.1037/rev0000263] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We demonstrate through theoretical, empirical, and sociocultural evidence that the concept of impulsivity fails the basic requirements of a psychological construct and should be rejected as such. Impulsivity (or impulsiveness) currently holds a central place in psychological theory, research, and clinical practice and is considered a multifaceted concept. However, impulsivity falls short of the theoretical specifications for hypothetical constructs by having meaning that is not compatible with psychometric, neuroscience, and clinical data. Psychometric findings indicate that impulsive traits and behaviors (e.g., response inhibition, delay discounting) are largely uncorrelated and fail to load onto a single, superordinate latent variable. Modern neuroscience has also failed to identify a specific and central neurobehavioral mechanism underlying impulsive behaviors and instead has found separate neurochemical systems and loci that contribute to a variety of impulsivity types. Clinically, these different impulsivity types show diverging and distinct pathways and processes relating to behavioral and psychosocial health. The predictive validity and sensitivity of impulsivity measures to pharmacological, behavioral, and cognitive interventions also vary based on the impulsivity type evaluated and clinical condition examined. Conflation of distinct personality and behavioral mechanisms under a single umbrella of impulsivity ultimately increases the likelihood of misunderstanding at a sociocultural level and facilitates misled hypothesizing and artificial inconsistencies for clinical translation. We strongly recommend that, based on this comprehensive evidence, psychological scientists and neuroscientists reject the language of impulsivity in favor of a specific focus on the several well-defined and empirically supported factors that impulsivity is purported to cover. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
- Justin C Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Matthew W Johnson
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
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22
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Harmon DA, Haas AL, Peterkin A. Experimental tasks of behavioral risk taking in alcohol administration studies: A systematic review. Addict Behav 2021; 113:106678. [PMID: 33065446 DOI: 10.1016/j.addbeh.2020.106678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022]
Abstract
Research on emerging adults shows this population exhibits the highest rates of alcohol use and engages in the riskiest of behaviors (Boyer, 2006; Fromme, Corbin, & Kruse, 2008). Among experimental paradigms, prior reviews have established an increase in behavioral risk taking while under the influence of alcohol (Moskowitz & Robinson, 1988; Martin et al., 2013; Weafer & Fillmore, 2016). Previous research highlighted the importance of alcohol dose on behavioral risk taking and the lack of agreement on which psychometric tools are most accurate in assessing behavioral risk taking (Beulow & Blaine, 2015; King, Toule, De Wit, & Holdstock, 2002). This systematic review of experimental paradigms assessing the effects of the dose of alcohol on various behavioral risk taking tasks suggest that higher alcohol doses (0.6 g/kg and above) produces the most robust increase in behavioral risk taking across tasks, compared to lower doses of alcohol (<0.6 g/kg). Results suggest the BART is the most sensitive behavioral risk task used to detect increases in risk taking in moderate/higher doses compared to lower doses of alcohol. This review also highlights the difficulty in measuring behavioral risk taking, as behavioral risk taking is a complex, multifaceted phenomenon that may involve multiple constructs and means to capture it. Future research is needed to standardize experimental administration protocols, to aid in advancing the field of alcohol administration experiments, and to determine the most accurate measurement of behavioral risk taking. PUBLIC HEALTH SIGNIFICANCE: Past experimental paradigms measuring behavioral risk taking under the influence of alcohol in emerging adults have used various alcohol administration paradigms, experimental protocols, and behavioral risk tasks. Key to examining behavioral risk taking via experimental paradigms should use at higher alcohol doses. Future interventions need to assess for levels of blood alcohol concentration when assessing for at-risk populations for alchol use disorders.
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23
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Cox DJ, Brodhead MT. A Proof of Concept Analysis of Decision-Making with Time-Series Data. PSYCHOLOGICAL RECORD 2021. [DOI: 10.1007/s40732-020-00451-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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24
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Berry MS, Sweeney MM, Dolan SB, Johnson PS, Pennybaker SJ, Rosch KS, Johnson MW. Attention-Deficit/Hyperactivity Disorder Symptoms Are Associated with Greater Delay Discounting of Condom-Protected Sex and Money. ARCHIVES OF SEXUAL BEHAVIOR 2021; 50:191-204. [PMID: 32328913 DOI: 10.1007/s10508-020-01698-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 03/25/2020] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is associated with increased risk of detrimental life outcomes. Recent research also indicates that ADHD is associated with sexual risk behavior, such as unprotected sex. Some risky sexual behaviors may be driven, in part, by preference for immediate rewards, referred to as delay discounting, which is prominent in etiological models of ADHD. Therefore, the present study examined the effect of delay on preference for both monetary and sexual outcomes in adults with many ADHD symptoms (both on and off medication) and with fewer ADHD symptoms. Online participants (N = 275; n = 161 males, n = 114 females) completed a monetary delay discounting task, assessing preference for smaller sooner versus larger delayed hypothetical money, and the Sexual Delay Discounting Task, assessing preference for condom use in hypothetical casual sex scenarios based on delay until condom availability. Those with greater ADHD symptoms discounted delayed monetary outcomes as well as delayed condom-protected sex (i.e., preferred sooner money rewards and immediate unprotected sex) significantly more than those with fewer symptoms; however, no effect of current medication use was found across monetary or sexual delay discounting among those with greater ADHD symptoms. This study is the first to demonstrate the relation between ADHD symptoms and reduced condom-use likelihood. Increased discounting of delayed condom-protected sex might constitute one mechanism of risky sexual behavior among individuals with ADHD symptoms. Interventions geared toward increasing condom use in situations in which condoms may otherwise be unavailable, may mitigate risky sexual behaviors and their associated harms in this population.
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Affiliation(s)
- Meredith S Berry
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Suite 3000, Baltimore, MD, 21224, USA
- Department of Health Education and Behavior, University of Florida, Gainesville, FL, USA
- Department of Psychology, University of Florida, Gainesville, FL, USA
| | - Mary M Sweeney
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Suite 3000, Baltimore, MD, 21224, USA
| | - Sean B Dolan
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Suite 3000, Baltimore, MD, 21224, USA
| | - Patrick S Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Suite 3000, Baltimore, MD, 21224, USA
- Department of Psychology, California State University, Chico, Chico, CA, USA
| | - Steven J Pennybaker
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Suite 3000, Baltimore, MD, 21224, USA
| | - Keri S Rosch
- Center for Neurodevelopmental and Imaging Research and Department of Neuropsychology, Kennedy Krieger Institute, Baltimore, MD, USA
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Matthew W Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Suite 3000, Baltimore, MD, 21224, USA.
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25
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Cox DJ, Dolan SB, Johnson P, Johnson MW. Delay and probability discounting in cocaine use disorder: Comprehensive examination of money, cocaine, and health outcomes using gains and losses at multiple magnitudes. Exp Clin Psychopharmacol 2020; 28:724-738. [PMID: 31886701 PMCID: PMC7326647 DOI: 10.1037/pha0000341] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Understanding factors associated with cocaine use disorder is important given its public health impact. One factor is delay discounting (devaluation of future consequences). Cocaine users have shown greater delay discounting of money rewards than non-cocaine users. But underexamined are factors known to affect discounting, such as the sign (reward vs. loss), magnitude (e.g., $10 vs. $1,000), and commodity (e.g., money vs. health) of the consequence. Also underexamined is probability discounting (devaluation of uncertain consequences). We conducted a comprehensive group-comparison study of discounting processes by comparing sign, magnitude, and commodity effects between demographically matched cocaine users (n = 23) and never users (n = 24) for delay discounting and sign and magnitude effects for probability discounting. Participants completed delay and probability discounting tasks spanning rewards and losses; money, cocaine, and health outcomes; and magnitudes of $10, $100, and $1,000. Four primary findings emerged when controlling for other drug use. First, cocaine users pervasively discounted delayed consequences more than never users regardless of sign, magnitude, or commodity, with the possible exception of delay discounting of $1,000 health equivalences. Second, both groups discounted delayed rewards more than losses, with a similar trend for probability discounting. Third, magnitude effects in cocaine users for delayed and probabilistic outcomes were similar to those previously observed in never users and other-drug users. Fourth, cocaine users discounted cocaine-related outcomes more than money and health, with variable results comparing money and health. These data suggest that the behavioral processes of delay and probability discounting are qualitatively similar for cocaine users and never users. However, quantitatively, cocaine users generally showed greater delay discounting and similar probability discounting compared with never users. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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Affiliation(s)
- David J. Cox
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Sean B. Dolan
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Patrick Johnson
- California State University, Chico, Department of Psychology, Chico, California, United States of America
| | - Matthew W. Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
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26
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Fillmore MT, Van Dyke N. DUI offenders display reduced perception of intoxication and heightened impulsive choice in response to alcohol. Exp Clin Psychopharmacol 2020; 28:337-347. [PMID: 31282704 PMCID: PMC6946908 DOI: 10.1037/pha0000311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Driving under the influence (DUI) of alcohol continues to be a major contributor in traffic fatalities. There is growing evidence for heightened trait impulsivity in DUI offenders, but little is known about how impulsivity could interact with alcohol intoxication in a manner that would increase the likelihood of driving while intoxicated. This placebo-controlled study examined the acute effects of 0.65g/kg alcohol on 2 facets of impulsivity (impulsive choice and response inhibition), simulated risky driving behavior, and subjective intoxication in a group of 20 DUI offenders and 20 control drivers with no history of DUI. It was predicted that compared with controls, DUI offenders would self-report greater impulsivity, and display greater impulsive choice and driver risk taking, particularly in response to alcohol. Results showed that alcohol impaired drivers' inhibitory control and increased their impulsive choice behavior and risky driving behavior. Alcohol selectively increased impulsive choice of DUI offenders, as control drivers showed no alcohol-induced increase in their impulsive choices. Results also showed that, compared with controls, offenders reported feeling less intoxicated and were more willing to drive after drinking. Laboratory studies are beginning to show that DUI offenders differ from nonoffenders in their acute responses to alcohol. This study identified two alcohol response characteristics of DUI offenders that indicate their lack of risk awareness during intoxication: heightened impulsivity and reduced subjective intoxication. Strategies and treatments to alter these response characteristics in DUI offenders could enhance their risk awareness during the intoxicated state and possibly reduce risk of DUI recidivism. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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Affiliation(s)
- Mark T. Fillmore
- Correspondence concerning this article
should be addressed to: Mark T. Fillmore, Department of Psychology, University
of Kentucky, Lexington, KY 40506-0044, Phone: (859) 257-4728,
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27
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Dolan SB, Johnson PS, Johnson MW. The Hotel Room Purchase Task: Effects of Gender and Partner Desirability on Demand for Hypothetical Sex in Individuals with Disordered Cocaine Use and Controls. ARCHIVES OF SEXUAL BEHAVIOR 2020; 49:1251-1262. [PMID: 31989411 PMCID: PMC8977073 DOI: 10.1007/s10508-020-01634-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 05/03/2023]
Abstract
Hypothetical purchase tasks allow for rapid assessment of behavioral economic demand for numerous commodities and are useful in evaluating reinforcer pathologies, such as substance and behavioral addiction. Currently, there is not a task for evaluating demand for sex without requiring implicit engagement in sex work. The current study used a novel purchase task with hotel rooms for sex as the hypothetical commodity to assess demand for sex in individuals with disordered cocaine use, a population that frequently engages in risky sexual behavior. Adults meeting criteria for cocaine abuse or dependence (13 males, ten females) and noncocaine-using controls (eight males, three females) chose hypothetical sexual partners from a series of photographs and endorsed two partners with whom they would most and least like to have sex. Participants then completed the hotel purchase task for both partners, wherein they reported how many nights at a hotel room, at prices from $10 to $1280 per night, they would purchase in a year. Demand intensity was significantly greater and demand elasticity was significantly lower for the most preferred relative to the less preferred partner. Males demonstrated significantly greater intensity and lesser elasticity for sex than females. Demand metrics did not differ between the cocaine and control group. This task may serve as a useful measure of demand for sex without requiring implicit hypothetical engagement in sex work. Future studies exploring the relation between task performance and other characteristics such as sexual dysfunction, in addition to acute substance administration effects, may further determine the task's clinical utility.
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Affiliation(s)
- Sean B Dolan
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Science, Johns Hopkins University School of Medicine, 5510 Nathan Shock Dr., Suite 3026, Baltimore, MD, 21224, USA
| | - Patrick S Johnson
- Department of Psychology, California State University, Chico, Chico, CA, USA
| | - Matthew W Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Science, Johns Hopkins University School of Medicine, 5510 Nathan Shock Dr., Suite 3026, Baltimore, MD, 21224, USA.
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Sweeney MM, Berry MS, Johnson PS, Herrmann ES, Meredith SE, Johnson MW. Demographic and sexual risk predictors of delay discounting of condom-protected sex. Psychol Health 2020; 35:366-386. [PMID: 31311321 PMCID: PMC6962567 DOI: 10.1080/08870446.2019.1631306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 06/10/2019] [Indexed: 10/26/2022]
Abstract
Objective: Sexual delay discounting describes the decreased likelihood of condom-protected sex if a condom is not immediately available, which can be quantitatively summarised using the Sexual Delay Discounting Task (SDDT). The present studies determined the extent to which condom use likelihood as assessed by the SDDT is associated with self-reported sexual risk behaviours and demographics in two online samples of adults. Design: Study 1 (n = 767) assessed demographics, sexual risk behaviour, and delay discounting, and examined relations between these variables using correlation and regression. Study 2 (n = 267) examined whether real-world instances of unprotected sex because a condom was not immediately available predicted greater sexual discounting. Main outcome measures: Sexual delay discounting, condom use. Results: Both studies observed significant positive relations between sexual delay discounting and self-reported sexual risk behaviours, and found that males tended to show greater sexual discounting. In Study 2, 46% of the sample self-reported having unprotected sex because a condom was not immediately available, and these individuals showed significantly greater sexual delay discounting. Conclusion: These results extend prior findings by demonstrating that delay is a critical variable underlying real-life sexual risk behaviour among non-clinical samples. The SDDT is an ecologically valid measure of these processes.
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Affiliation(s)
- Mary M. Sweeney
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Meredith S. Berry
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Patrick S. Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Evan S. Herrmann
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Steven E. Meredith
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Matthew W. Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
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Dolan SB, Johnson MW. The drug purity discounting task: Ecstasy use likelihood is reduced by probabilistic impurity according to harmfulness of adulterants. Drug Alcohol Depend 2020; 208:107772. [PMID: 31974022 PMCID: PMC7156028 DOI: 10.1016/j.drugalcdep.2019.107772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/28/2019] [Accepted: 11/21/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND Ecstasy typically contains adulterants in addition to, or in lieu of, MDMA which may pose a greater risk to users than MDMA itself. The current study aimed to evaluate the effectiveness of adulterant-related informational prompts in reducing Ecstasy use using a novel probability discounting task. METHODS An online sample of past-month Ecstasy users (N = 278) were randomized to one of four different framing prompt conditions: no prompt; a prompt describing MDMA's effects; a prompt describing adulterants as inert "filler"; or a prompt describing adulterants as pharmacologically-active, potentially-harmful compounds. Each prompt contained general, potential public-health information that was not specifically related to subsequent behavioral tasks. All participants then completed an identical Drug Purity Discounting Task, in which they indicated the likelihood of using a sample of Ecstasy across different probabilities of the sample being impure, and then completed a hypothetical Ecstasy purchasing task. RESULTS Likelihood of Ecstasy use decreased as impurity probability increased across conditions. Ecstasy use likelihood was highest in the "inert" prompt condition, whereas pharmacologically-active adulterant or adulterant-nonspecific prompts resulted in comparably low likelihood of use. Ecstasy-use likelihood did not differ among conditions when the likelihood of sample impurity was 0. Ecstasy purchasing did not differ among groups. Inelastic purchasing was associated with greater likelihood of using potentially-impure Ecstasy. CONCLUSIONS Altogether, these data highlight the necessity of education regarding pharmacologically-active, rather than inert, adulterants in Ecstasy, and suggest that increased access to drug checking kits and services may mitigate some of the harms associated with Ecstasy use.
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Affiliation(s)
- Sean B Dolan
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Dr., Baltimore, MD 21224, USA.
| | - Matthew W Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Dr., Baltimore, MD 21224, USA.
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Strickland JC, Marks KR, Bolin BL. The condom purchase task: A hypothetical demand method for evaluating sexual health decision-making. J Exp Anal Behav 2020; 113:435-448. [PMID: 32056222 DOI: 10.1002/jeab.585] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 01/25/2020] [Accepted: 01/27/2020] [Indexed: 12/16/2022]
Abstract
Behavioral economic theory has proved useful for understanding the influence of delay and probability on sexual health decision-making. Demand is another principle at the intersection of microeconomics and psychology that has helped advance research relevant to health behaviors. The purpose of the present study was to develop and test a demand measure related to sexual health decision-making and the influence of sexually transmitted infection (STI) risk. Participants (N = 438) recruited using Amazon Mechanical Turk completed a commodity purchase task assessing hypothetical condom demand. Condom demand was evaluated at varied prices for use with hypothetical sexual partners that varied in STI risk. Demand was characterized by prototypic decreases in consumption with increases in cost. Higher partner STI risk was associated with greater intentions for condom-protected sex at no cost and smaller decreases in condom demand with increases in cost. Price sensitivity was also related to individual difference factors relevant to sexual health (e.g., alcohol use severity, lower STI knowledge). This study supports the utility of a condom purchase task for indexing condom valuation and capturing individual difference and contextual risk factors relevant to STI transmission. Future studies may leverage this methodology as a means to study sexual health decision-making.
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Affiliation(s)
- Justin C Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Katherine R Marks
- Department of Behavioral Science, University of Kentucky College of Medicine
| | - B Levi Bolin
- Department of Behavioral Science, University of Kentucky College of Medicine
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31
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Leeman RF, Rowland BHP, Gebru NM, Potenza MN. Relationships among impulsive, addictive and sexual tendencies and behaviours: a systematic review of experimental and prospective studies in humans. Philos Trans R Soc Lond B Biol Sci 2020; 374:20180129. [PMID: 30966924 DOI: 10.1098/rstb.2018.0129] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Impulsivity's relationships to addictive and sexual behaviours raise questions regarding the extent impulsivity may constitute a vulnerability factor for subsequent addictive and sexual behaviours and/or results from each of these. Here, we systematically reviewed empirical support for impulsivity as a precipitating factor or a consequence of addictive or sexual behaviours. We restricted ourselves to recent, human studies with assessments over time, including at least one measure of impulsivity, addictive and sexual behaviours, yielding a review including 29 published reports from 28 studies. Findings point to generalized, self-reported impulsivity as a predictor of addictive and sexual behaviours at a wide range of severity, with elements of both impulsivity and compulsivity to these acts. Alcohol consumption often increases impulsive behaviour, including inclinations towards impulsive and potentially compulsive sexual acts. Research using the Sexual Delay Discounting Task has yielded findings linking impulsivity, addictive and sexual behaviour and as such is a valuable research tool that should be used more extensively. The present review identified gaps to be addressed in further research that concurrently examines facets of impulsivity, addictive and sexual behaviours, especially because criteria for compulsive sexual behaviour disorder have been included in the eleventh edition of the International Classification of Diseases. This article is part of the theme issue 'Risk taking and impulsive behaviour: fundamental discoveries, theoretical perspectives and clinical implications'.
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Affiliation(s)
- Robert F Leeman
- 1 Department of Health Education and Behavior, College of Health and Human Performance and the Center for Addiction Research and Education, University of Florida , Gainesville, FL 32611 , USA.,2 Department of Psychiatry, Yale School of Medicine , New Haven, CT 06510 , USA
| | - Bonnie H P Rowland
- 1 Department of Health Education and Behavior, College of Health and Human Performance and the Center for Addiction Research and Education, University of Florida , Gainesville, FL 32611 , USA
| | - Nioud Mulugeta Gebru
- 1 Department of Health Education and Behavior, College of Health and Human Performance and the Center for Addiction Research and Education, University of Florida , Gainesville, FL 32611 , USA
| | - Marc N Potenza
- 2 Department of Psychiatry, Yale School of Medicine , New Haven, CT 06510 , USA.,3 Child Study Center and the Department of Neuroscience, Yale School of Medicine , New Haven, CT 06510 , USA.,4 Connecticut Council on Problem Gambling , Wethersfield, CT 06109 , USA.,5 Connecticut Mental Health Center , New Haven, CT 06519 , USA
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Jones J, Guest JL, Sullivan PS, Kramer MR, Jenness SM, Sales JM. Concordance between monetary and sexual delay discounting in men who have sex with men. Sex Health 2019; 15:214-222. [PMID: 29212590 DOI: 10.1071/sh17111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 09/15/2017] [Indexed: 11/23/2022]
Abstract
Background Delay discounting has been found to be associated with numerous health-related outcomes, including risky sexual behaviour. To date, it is unclear whether delay discounting measured in different domains is associated within individuals. The goal of this study was to assess the concordance of monetary and sexual delay discounting in men who have sex with men. METHODS Participants completed an online survey, including the Monetary Choice Questionnaire and the Sexual Discounting Task. Linear regression models were used to assess the association between monetary and sexual discount rates. RESULTS Sexual discount rates did not predict monetary discount rates. There was a substantial amount of clustering of sexual discount rates, requiring sexual discounting data to be categorised. CONCLUSIONS Monetary and sexual delay discounting are distinct processes that are not necessarily associated within individuals, and monetary delay discounting is not an appropriate proxy measure for sexual impulsivity. Data from the Sexual Discounting Task are typically rank-transformed for analysis. These data suggest that this might be an invalid method of analysis. Future studies should investigate the distribution of their data to determine if it is appropriate to analyse sexual discounting data as a continuous measure.
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Affiliation(s)
- Jeb Jones
- Department of Epidemiology, Emory University, 1518 Clifton Road, Atlanta, GA 30322
| | - Jodie L Guest
- Department of Epidemiology, Emory University, 1518 Clifton Road, Atlanta, GA 30322
| | - Patrick S Sullivan
- Department of Epidemiology, Emory University, 1518 Clifton Road, Atlanta, GA 30322
| | - Michael R Kramer
- Department of Epidemiology, Emory University, 1518 Clifton Road, Atlanta, GA 30322
| | - Samuel M Jenness
- Department of Epidemiology, Emory University, 1518 Clifton Road, Atlanta, GA 30322
| | - Jessica M Sales
- Department of Behavioral Sciences and Health Education, Emory University, 1518 Clifton Road, Atlanta, GA 30322
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33
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George WH. Alcohol and Sexual Health Behavior: "What We Know and How We Know It". JOURNAL OF SEX RESEARCH 2019; 56:409-424. [PMID: 30958036 DOI: 10.1080/00224499.2019.1588213] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Alcohol, despite salutary associations with sexuality, has been implicated in sexual health problems. This review examines the relationship between alcohol and outcomes related to sexual health. Methodological considerations limiting causal assertions permissible with nonexperimental data are discussed, as are advantages of experimental methods. Findings from laboratory experiments are reviewed evaluating causal effects of acute alcohol intoxication on a variety of outcomes, including sexual arousal, sexual desire, orgasm, and sexual risk behaviors related to sexually transmitted infections (STIs) and human immunodeficiency virus (HIV). Several variables exerting mediating and moderating influences are identified. It is concluded that acute alcohol intoxication is capable of exerting a causal impact on multiple constituent components of sexual responding related to sexual health. Both alcohol expectancy and alcohol myopia theories have been supported as explanations for these causal effects. Furthermore, for sexual risk behavior, noteworthy recent developments include research highlighting the importance of women's sexual victimization history and men's condom use resistance. Limitations and implications associated with this body of research are also discussed.
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Bernhardt N, Obst E, Nebe S, Pooseh S, Wurst FM, Weinmann W, Smolka MN, Zimmermann US. Acute alcohol effects on impulsive choice in adolescents. J Psychopharmacol 2019; 33:316-325. [PMID: 30676200 DOI: 10.1177/0269881118822063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Neurodevelopmental and alcohol-induced changes in decision-making have been proposed to critically influence impulsive behaviour in adolescents. OBJECTIVE This study tested the influence of acute alcohol administration on impulsive choice in adolescents. METHODS Fifty-four males aged 18-19 years were tested in a single-blind placebo-controlled cross-over design. During alcohol administration (infusion resulting in an arterial blood alcohol concentration of 80 mg%) and placebo condition (saline infusion), participants performed a task battery providing estimates of delay discounting, probability discounting for gains, for losses and loss aversion, and also rated subjectively experienced alcohol effects. Additionally, baseline alcohol consumption (Alcohol Use Disorders Identification Test, blood phosphatidylethanol levels), motives (Drinking Motive Questionnaire, Alcohol Expectancy Questionnaire and Obsessive Compulsive Drinking Scale), family history and self-report measures of impulsivity (Barratt Impulsiveness Scale, Substance Use Risk Profile Scale) were provided. RESULTS No overall effects of treatment on choice behaviour were found. However, individual differences were observed. In the alcohol condition, more impulsive choice tendencies for delay discounting were associated with higher subjectively experienced alcohol effects. Further, higher risk aversion for probabilistic gains and higher loss aversion during alcohol condition were related to higher levels of real-life alcohol consumption and a family history of alcohol problems, respectively. Finally, the time to make a decision was substantially shortened for choices involving negative prospects. CONCLUSIONS Contrary to common beliefs, acute alcohol intoxication did not generally incite impulsive decision-making. It rather appears that alcohol-induced behavioural changes in adolescents vary considerably depending on prior experiences and subjective effects of alcohol.
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Affiliation(s)
- Nadine Bernhardt
- 1 Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - Elisabeth Obst
- 1 Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - Stephan Nebe
- 1 Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany.,2 Department of Economics, University of Zurich, Zurich, Switzerland
| | - Shakoor Pooseh
- 1 Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany.,3 Freiburg Centre for Data Analysis and Modelling, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Friedrich M Wurst
- 4 Psychiatric University Hospital, Basel, Switzerland.,5 Centre for Interdisciplinary Addiction Research, UKE Hamburg, Hamburg, Germany
| | - Wolfgang Weinmann
- 6 Institute of Forensic Medicine, Forensic Toxicology and Chemistry, University of Bern, Bern, Switzerland
| | - Michael N Smolka
- 1 Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - Ulrich S Zimmermann
- 1 Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany
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35
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DeHart WB, Friedel JE, Frye CCJ, Galizio A, Odum AL. The effects of outcome unit framing on delay discounting. J Exp Anal Behav 2018; 110:412-429. [PMID: 30203525 DOI: 10.1002/jeab.469] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 07/24/2018] [Indexed: 01/31/2023]
Abstract
We examined the effects of outcome framing on delay discounting. In Experiment 1, participants completed four delay-discounting tasks. In one monetary task, money was framed in units of dollars ($50), and in the other, money was framed in units of handfuls of quarters (equal to $50). In one food task, food was framed in clear units of food (e.g., 100 M&Ms), and in the other, food was framed in units of servings (e.g., 10 servings of M&Ms). When money was framed in units of dollars, participants discounted less by delay compared to discounting of handfuls of quarters. When food was framed as clear units, participants also discounted less compared to how they discounted servings. In Experiment 2, participants completed two delay-discounting tasks for dollars and quarters (e.g., $50 or 200 quarters) to determine if the results of Experiment 1 were due to the differences in handling costs. In one delay-discounting task, money was framed in units of dollars. In the other delay-discounting task, money was framed in units of quarters. There was no difference in how participants discounted delayed money framed as dollars or quarters. Clear unit framing may result in less discounting by delay than fuzzy unit framing.
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36
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Lemley SM, Jarmolowicz DP, Parkhurst D, Celio MA. The Effects of Condom Availability on College Women's Sexual Discounting. ARCHIVES OF SEXUAL BEHAVIOR 2018; 47:551-563. [PMID: 28913688 DOI: 10.1007/s10508-017-1040-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 06/28/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
College students commonly engage in risky sexual behaviors, such as casual sexual encounters and inconsistent condom use. Discounting paradigms that examine how individuals devalue rewards due to their delay or uncertainty have been used to improve our understanding of behavioral problems, including sexual risk. The current study assessed relations between college women's sexual partners discounting and risky sexual behavior. In this study, college women (N = 42) completed two sexual partners delay discounting tasks that assessed how choices among hypothetical sexual partners changed across a parametric range of delays in two conditions: condom availability and condom unavailability. Participants also completed two sexual partners probability discounting tasks that assessed partner choices across a parametric range of probabilities in condom availability and unavailability conditions. Additionally, participants reported risky sexual behavior on the Sexual Risk Survey (SRS). Participants discounted delayed partners more steeply in the condom availability condition, but those differences were significant only for those women with three or fewer lifetime sexual partners. There were no consistent differences in discounting rate across condom availability conditions for probability discounting. Sexual partners discounting measures correlated with risky sexual behaviors as measured by the SRS, but a greater number of significant relations were observed with the condoms-unavailable delay discounting task. These findings suggest the importance of examining the interaction of inconsistent condom use and multiple partners in examinations of sexual decision-making.
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Affiliation(s)
- Shea M Lemley
- Department of Applied Behavioral Science, University of Kansas, 4041 Dole Developmental Center, 1000 Sunnyside Ave., Lawrence, KS, 66045, USA.
| | - David P Jarmolowicz
- Department of Applied Behavioral Science and Problem Gambling Research and Education Support System, University of Kansas, 1000 Sunnyside Ave., Lawrence, KS, 66045, USA
| | - Daniel Parkhurst
- Department of Applied Behavioral Science, University of Kansas, 4050 Dole Developmental Center, 1000 Sunnyside Ave., Lawrence, KS, 66045, USA
| | - Mark A Celio
- Department of Behavioral and Social Sciences, Brown University, Box G-121-5, 121 S. Main Street, Providence, RI, 02915, USA
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37
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Tompkins DA, Huhn AS, Johnson PS, Smith MT, Strain EC, Edwards RR, Johnson MW. To take or not to take: the association between perceived addiction risk, expected analgesic response and likelihood of trying novel pain relievers in self-identified chronic pain patients. Addiction 2018; 113:67-79. [PMID: 28645137 PMCID: PMC5725253 DOI: 10.1111/add.13922] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 03/31/2017] [Accepted: 06/19/2017] [Indexed: 01/30/2023]
Abstract
BACKGROUND AND AIMS Probability discounting refers to the effect of outcome uncertainty on decision making. Using probability discounting, we examined the degree to which self-identified chronic pain patients (CPP) were likely to try a novel analgesic medication given increasing addiction risk. We postulated that propensity for opioid misuse, trait impulsivity and previous opioid experience would be associated positively with likelihood of risky medication use. DESIGN This cross-sectional on-line study determined state/trait associations with addiction-related medication decisions in CPP. SETTING US-based CPP participated via Amazon Mechanical Turk; data were collected and analyzed in Baltimore, Maryland. PARTICIPANTS A total of 263 CPP (70.6% female) participated in the study from 12-13 December 2014. MEASUREMENTS CPP responded to the Benefit versus Addiction Risk Questionnaire (BARQ) assessing likelihood of taking a hypothetical once-daily oral analgesic medication as a function of two factors: risk of addiction (0-50%) and duration of expected complete pain relief (3, 30 or 365 days). The primary outcome was the BARQ, quantified as area under the curve (AUC). Grouping of CPP at high or low risk for opioid misuse was based on the Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R). Predictors included previous experience with opioids, as well as various measures of chronic pain and mental health. FINDINGS Across hypothetical addiction risk assessed in the BARQ, the likelihood of taking a novel analgesic medication was elevated significantly in patients with high (≥18; n = 137) versus low (<18; n = 126) SOAPP-R scores [P < 0.001; 3-day: Cohen's d = 0.66, 95% confidence interval (CI) = 0.63, 0.69; 30-day: d = 0.74, 95% CI = 0.71, 0.78; 365-day: d = 0.75, 95% CI = 0.72, 0.79]. CONCLUSIONS In the United States, self-identified chronic pain patients (CPP) at higher risk for opioid misuse were more likely to report willingness to try a novel analgesic despite increasing addiction risk than CPP with low risk of opioid misuse.
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Affiliation(s)
- D. Andrew Tompkins
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andrew S. Huhn
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Patrick S. Johnson
- Department of Psychology, California State University - Chico, Chico, CA, USA
| | - Michael T. Smith
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Eric C. Strain
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Robert R. Edwards
- Department of Anesthesiology, Perioperative, and Pain Medicine, Harvard Medical School, Brigham and Women’s Hospital, Boston, MA, USA
| | - Matthew W. Johnson
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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38
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Koffarnus MN, Kaplan BA. Clinical models of decision making in addiction. Pharmacol Biochem Behav 2018; 164:71-83. [PMID: 28851586 PMCID: PMC5747979 DOI: 10.1016/j.pbb.2017.08.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 08/08/2017] [Accepted: 08/21/2017] [Indexed: 01/25/2023]
Abstract
As research on decision making in addiction accumulates, it is increasingly clear that decision-making processes are dysfunctional in addiction and that this dysfunction may be fundamental to the initiation and maintenance of addictive behavior. How drug-dependent individuals value and choose among drug and nondrug rewards is consistently different from non-dependent individuals. The present review focuses on the assessment of decision-making in addiction. We cover the common behavioral tasks that have shown to be fruitful in decision-making research and highlight analytical and graphical considerations, when available, to facilitate comparisons within and among studies. Delay discounting tasks, drug demand tasks, drug choice tasks, the Iowa Gambling Task, and the Balloon Analogue Risk Task are included.
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Affiliation(s)
- Mikhail N Koffarnus
- Virginia Tech Carilion Research Institute, 2 Riverside Circle, Roanoke, VA 24016, United States.
| | - Brent A Kaplan
- Virginia Tech Carilion Research Institute, 2 Riverside Circle, Roanoke, VA 24016, United States
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39
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Meredith SE, Rash CJ, Petry NM. Alcohol use disorders are associated with increased HIV risk behaviors in cocaine-dependent methadone patients. J Subst Abuse Treat 2017; 83:10-14. [PMID: 29129191 PMCID: PMC5726558 DOI: 10.1016/j.jsat.2017.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 09/03/2017] [Accepted: 09/29/2017] [Indexed: 11/29/2022]
Abstract
People who inject drugs (PWID) are at increased risk of HIV infection. Although methadone maintenance therapy can help lower this risk, many methadone patients continue to engage in HIV risk behaviors, especially patients who use cocaine and alcohol. The purpose of the current study was to investigate relations between alcohol use disorders and HIV risk behavior in 239 cocaine-dependent methadone patients participating in a randomized controlled trial of a behavioral intervention to promote cocaine abstinence. Past 3-month HIV Risk-taking Behavior Scale (HRBS) scores were compared between cocaine-dependent methadone patients who met DSM-IV-TR diagnostic criteria for alcohol abuse or dependence and those who did not meet these criteria. No significant differences in HRBS drug subscale scores were observed between participants with and without alcohol use disorders, indicating risky drug use was similar between groups. However, alcohol use disorder was significantly associated with HRBS sex subscale scores (t=2.59, p=0.01), indicating participants with alcohol use disorders were more likely to engage in risky sexual behavior. Item-level analyses of the sex-related HRBS questions showed participants with alcohol use disorders were significantly more likely than participants without alcohol use disorders to have unprotected sex, engage in transactional (paid) sex, and have anal sex. Interventions are needed to reduce risky sexual behavior and attenuate the spread of HIV in this high-risk population.
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Affiliation(s)
- Steven E Meredith
- University of Connecticut School of Medicine, Calhoun Cardiology Center, 263 Farmington Avenue, Farmington, CT 06030, United States
| | - Carla J Rash
- University of Connecticut School of Medicine, Calhoun Cardiology Center, 263 Farmington Avenue, Farmington, CT 06030, United States
| | - Nancy M Petry
- University of Connecticut School of Medicine, Calhoun Cardiology Center, 263 Farmington Avenue, Farmington, CT 06030, United States.
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40
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Berry MS, Johnson MW. Does being drunk or high cause HIV sexual risk behavior? A systematic review of drug administration studies. Pharmacol Biochem Behav 2017; 164:125-138. [PMID: 28843425 DOI: 10.1016/j.pbb.2017.08.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 07/25/2017] [Accepted: 08/21/2017] [Indexed: 01/05/2023]
Abstract
HIV sexual risk behavior is broadly associated with substance use. Yet critical questions remain regarding the potential causal link between substance use (e.g., intoxication) and HIV sexual risk behavior. The present systematic review was designed to examine and synthesize the existing literature regarding the effects of substance administration on HIV sexual risk behavior. Randomized controlled experiments investigating substance administration and HIV sexual risk behavior (e.g., likelihood of condom use in a casual sex scenario) were included. Across five databases, 2750 titles/abstracts were examined and forty-three total peer reviewed published manuscripts qualified (few were multi-study manuscripts, and those details are outlined in the text). The majority of articles investigated the causal role of acute alcohol administration on HIV sexual risk behavior, although one article investigated the effects of acute THC administration, one the effects of acute cocaine administration, and two the effects of buspirone. The results of this review suggest a causal role in acute alcohol intoxication increasing HIV sexual risk decision-making. Although evidence is limited with other substances, cocaine administration also appears to increase sexual risk, while acute cannabis and buspirone maintenance may decrease sexual risk. In the case of alcohol intoxication, the pharmacological effects independently contribute to HIV sexual risk decision-making, and these effects are exacerbated by alcohol expectancies, increased arousal, and delay to condom availability. Comparisons across studies showed that cocaine led to greater self-reported sexual arousal than alcohol, potentially suggesting a different risk profile. HIV prevention measures should take these substance administration effects into account. Increasing the amount of freely and easily accessible condoms to the public may attenuate the influence of acute intoxication on HIV sexual risk decision-making.
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Affiliation(s)
- Meredith S Berry
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, United States.
| | - Matthew W Johnson
- Behavioral Pharmacology Research Unit, Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, United States
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Awungafac G, Delvaux T, Vuylsteke B. Systematic review of sex work interventions in sub-Saharan Africa: examining combination prevention approaches. Trop Med Int Health 2017; 22:971-993. [PMID: 28449198 DOI: 10.1111/tmi.12890] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The incidence of HIV and sexually transmitted infections is disproportionately high among sex workers (SW). We aimed to update the evidence on the effectiveness of SW interventions in sub-Saharan Africa and to provide more insights into combination prevention. METHODS The Systematic review followed PRISMA guidelines in a search of PUBMED and POPLINE for peer-reviewed literature published between 1 January 2000 and 22 July 2016 (registration number on PROSPERO: CRD42016042529). We considered cohort interventions, randomised controlled trials and cross-sectional surveys of SW programmes. A framework was used in the description and mapping of intervention to desired outcomes. RESULTS Twenty-six papers(reporting on 25 studies) were included. A strategy that empowered peer educator leaders to steer community activities showed a twofold increase in coverage of behaviour change communication and utilisation of health facility among SW. Brief alcohol harm reduction effort demonstrated a significant effect on sexual violence and engagement in sex trading. A risk reduction counselling intervention among drug-injecting SW showed an effect on alcohol, substance use and engagement in sex work. No study on a promising intervention like PrEP among SWs was found. We observed that interventions that combined some structural components, biomedical and behavioural strategies tend to accumulate more desired outcomes. CONCLUSION The evidence base that can be considered in intervention designs to prevent HIV in SW in SSA is vast. The health sector should consider interventions to reduce binge alcohol intake and intravenous drug use among sex workers. Programmes should staunchly consider multicomponent approaches that explore community-based structural approaches.
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Affiliation(s)
- George Awungafac
- African Society for Laboratory Medicine, Addis Ababa, Ethiopia.,Ministry of Health, Yaoundé, Cameroon
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42
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Behavioral Economic Predictors of Alcohol and Sexual Risk Behavior in College Drinkers. PSYCHOLOGICAL RECORD 2017. [DOI: 10.1007/s40732-017-0239-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Morgan-Siebe JP. A social work plan to promote HIV testing: A social marketing approach. SOCIAL WORK IN HEALTH CARE 2017; 56:141-154. [PMID: 28051925 DOI: 10.1080/00981389.2016.1265626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Many people living with human immunodeficiency virus (HIV) do not know that they are infected. It is important for infected persons to get tested for HIV in order to be diagnosed and medically treated. HIV has no known cure, but it can be controlled and sometimes prevented with proper medical care. The social work profession has ideal positioning to be extraordinarily helpful in work that promotes HIV testing, leading to reducing then eliminating new HIV diagnoses. Social marketing interventions, along with audience segmenting are explained. Specific attention is given to two separate subjects-minority health disparities and impulsive and/or sensation seeking sex practices-to showcase the versatility of social marketing in the promotion of HIV testing. Further ideas about how social workers can participate in these interprofessional social marketing campaigns are provided.
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Affiliation(s)
- J P Morgan-Siebe
- a Institute for Sustainable Health & Optimal Aging, Kent School of Social Work , University of Louisville , Louisville , Kentucky , USA
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Johnson MW, Herrmann ES, Sweeney MM, LeComte RS, Johnson PS. Cocaine administration dose-dependently increases sexual desire and decreases condom use likelihood: The role of delay and probability discounting in connecting cocaine with HIV. Psychopharmacology (Berl) 2017; 234:599-612. [PMID: 27921140 PMCID: PMC5343757 DOI: 10.1007/s00213-016-4493-5] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 11/21/2016] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Although cocaine use has been linked to sexual HIV risk behavior for decades, the direct effects of cocaine on sexual desire and sexual decision-making are unexamined. Research suggests delay discounting (devaluation of future outcomes) and probability discounting (devaluation of uncertain outcomes) play roles in condom use decisions. This study examined the effect of cocaine administration on sexual desire, hypothetical condom use, and discounting tasks. METHODS This double-blind, within-subjects study compared the effects of 0, 125, and 250 mg/70 kg oral cocaine HCl in 12 cocaine users. Measures included sexual desire and other subjective ratings, the Sexual Delay Discounting Task, the Sexual Probability Discounting Task, and monetary delay and probability discounting tasks. RESULTS Cocaine caused dose-related increases in sexual desire and prototypical stimulant abuse-liability ratings. Relative to placebo, cocaine did not significantly alter condom use likelihood when condoms were immediately available or when sex was associated with 100% certainty of sexually transmitted infection (STI). In contrast, cocaine dose-dependently strengthened the effect of delay (sexual delay discounting) and STI uncertainty (sexual probability discounting) in decreasing condom use likelihood. Cocaine caused no significant change in monetary delay and probability discounting. CONCLUSION This is the first study showing that cocaine administration increases sexual desire. Detrimental effects of cocaine on sexual risk were only observed when safer sex required delay, or STI risk was uncertain (representative of many real-world scenarios), suggesting a critical role of discounting processes. Lack of monetary effects highlights the importance of studying clinically relevant outcomes when examining drug effects on behavioral processes.
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Affiliation(s)
- Matthew W Johnson
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA.
| | - Evan S Herrmann
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
- Columbia College of Physicians and Surgeons, New York State Psychiatric Institute, New York, NY, USA
| | - Mary M Sweeney
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
| | - Robert S LeComte
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
| | - Patrick S Johnson
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD, 21224, USA
- Department of Psychology, California State University, Chico, CA, USA
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