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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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2
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Gebru NM, Strickland JC, Reed DD, Kahler CW, Leeman RF. Use of preexposure prophylaxis and condom purchasing decisions. J Exp Anal Behav 2024; 121:233-245. [PMID: 38356347 PMCID: PMC10942754 DOI: 10.1002/jeab.905] [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: 05/04/2023] [Accepted: 01/26/2024] [Indexed: 02/16/2024]
Abstract
Preexposure prophylaxis (PrEP) prevents human immunodeficiency virus (HIV) but not other sexually transmitted infections (STIs). Men who have sex with men (MSM) who take PrEP tend to report reduced condom use, but little is known about the underlying mechanisms. For this study, MSM who take PrEP (i.e., PrEP experienced; n = 88) and MSM who do not (i.e., PrEP naïve; n = 113) completed an online study, including the condom purchase task (CoPT). The CoPT assesses decisions to purchase condoms across escalating prices (range: free-$55) for sex with different types of hypothetical partners: those least likely to have an STD (least STD) and those that participants most want to have sex with (most want sex with). When condoms were free, PrEP-experienced MSM had a lower rate of condom purchasing than did PrEP-naïve MSM. For both partner types, PrEP-experienced MSM reached a price break point (i.e., would not buy condoms) at a lower price than did PrEP-naïve pariticipants. For the most-want-sex-with partner at the price at which participants elected not to buy condoms, only 23% of PrEP-experienced MSM chose to abstain from sex when not purchasing condoms versus 53% among PrEP-naïve MSM. Similar patterns were observed for the least-STD partner. The results support the potential utility of the CoPT in identifying behavioral mechanisms related to condom use and PrEP.
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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, Providence, RI, USA
- Department of Health Education and Behavior, University of Florida, Gainesville, FL, USA
| | - Justin C Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Derek D Reed
- Institutes for Behavior Resources, Inc., Baltimore, MD, USA
| | - Christopher W Kahler
- Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, RI, 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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3
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Thomas R, Galizzi MM, Moorhouse L, Nyamukapa C, Hallett TB. Do risk, time and prosocial preferences predict risky sexual behaviour of youths in a low-income, high-risk setting? JOURNAL OF HEALTH ECONOMICS 2024; 93:102845. [PMID: 38103348 DOI: 10.1016/j.jhealeco.2023.102845] [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: 01/27/2023] [Revised: 12/07/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
Young people in sub-Saharan Africa are particularly at high risk of sexually transmitted infections. Little is known about their preferences and even less about their association with risky sexual behaviour. We conducted incentivized economic experiments to measure risk, time and prosocial preferences in Zimbabwe. Preferences measured at baseline predict biomarker and self-reported measures of risky sexual behaviour gathered 12 months later. We find robust evidence that individuals more altruistic at baseline are more likely to be Herpes Simplex Virus Type-2 (HSV-2) positive 12 months later. Analysis by sex shows this association is driven by our sample of women. Having more sexual partners is associated with greater risk tolerance amongst men and greater impatience amongst women. Results highlight heterogeneity in the association between preferences and risky sexual behaviour.
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Affiliation(s)
- Ranjeeta Thomas
- Department of Health Policy, London School of Economics and Political Science, London, United Kingdom.
| | - Matteo M Galizzi
- Department of Psychology and Behavioural Science, London School of Economics and Political Science, London, United Kingdom
| | - Louisa Moorhouse
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, United Kingdom
| | - Constance Nyamukapa
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, United Kingdom; Biomedical Research and Training Institute, Harare, Zimbabwe
| | - Timothy B Hallett
- MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, United Kingdom
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Mitzel LD, Johnson MW, Vanable PA. Delay Discounting and Sexual Decision-Making: Understanding Condom Use Behavior Among U.S. College Students. ARCHIVES OF SEXUAL BEHAVIOR 2023; 52:2605-2617. [PMID: 37085661 DOI: 10.1007/s10508-023-02597-4] [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: 02/05/2022] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 05/03/2023]
Abstract
Condoms provide protection against sexually transmitted diseases; however, condomless sex remains common among college students and intentions to use condoms do not consistently translate into condom use. This study tested which indicator of condom use intentions from a delay discounting paradigm of condom-protected sex best accounted for variance in condom use behavior. The sample consisted of 187 sexually active college students (51.9% female) who completed measures of condom use during vaginal and anal sex over the past three months and a decision-making paradigm regarding condom intentions with hypothetical sexual partners. In separate models, condom behavior was regressed on one of three indicators of condom intentions: initial intentions to use a condom, delay discounting of condom-protected sex, and overall area under the curve across all trials. Results showed that delay discounting of condom-protected sex best accounted for variance in absolute frequency of condomless sex, whereas initial intentions to use a condom best accounted for variance in relative proportion of condomless sex. Future research directions and implications for interventions are discussed.
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Affiliation(s)
- Luke D Mitzel
- Department of Psychology, Syracuse University, Syracuse, NY, USA.
- Center for Integrated Healthcare, Syracuse VA Medical Center, 620 Erie Blvd W, Syracuse, NY, 13204, USA.
| | - Matthew W Johnson
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Peter A Vanable
- Department of Psychology, Syracuse University, Syracuse, NY, USA
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5
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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: 0] [Impact Index Per Article: 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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Roth MR, Loya JM, Yi R. The role of social value orientation on delay discounting in a group context. PERSONALITY AND INDIVIDUAL DIFFERENCES 2022. [DOI: 10.1016/j.paid.2021.111401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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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: 2] [Impact Index Per Article: 1.0] [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: 9] [Impact Index Per Article: 3.0] [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
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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Meade CS, Li X, Towe SL, Bell RP, Calhoun VD, Sui J. Brain multimodal co-alterations related to delay discounting: a multimodal MRI fusion analysis in persons with and without cocaine use disorder. BMC Neurosci 2021; 22:51. [PMID: 34416865 PMCID: PMC8377830 DOI: 10.1186/s12868-021-00654-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 07/27/2021] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Delay discounting has been proposed as a behavioral marker of substance use disorders. Innovative analytic approaches that integrate information from multiple neuroimaging modalities can provide new insights into the complex effects of drug use on the brain. This study implemented a supervised multimodal fusion approach to reveal neural networks associated with delay discounting that distinguish persons with and without cocaine use disorder (CUD). METHODS Adults with (n = 35) and without (n = 37) CUD completed a magnetic resonance imaging (MRI) scan to acquire high-resolution anatomical, resting-state functional, and diffusion-weighted images. Pre-computed features from each data modality included whole-brain voxel-wise maps for gray matter volume, fractional anisotropy, and regional homogeneity, respectively. With delay discounting as the reference, multimodal canonical component analysis plus joint independent component analysis was used to identify co-alterations in brain structure and function. RESULTS The sample was 58% male and 78% African-American. As expected, participants with CUD had higher delay discounting compared to those without CUD. One joint component was identified that correlated with delay discounting across all modalities, involving regions in the thalamus, dorsal striatum, frontopolar cortex, occipital lobe, and corpus callosum. The components were negatively correlated with delay discounting, such that weaker loadings were associated with higher discounting. The component loadings were lower in persons with CUD, meaning the component was expressed less strongly. CONCLUSIONS Our findings reveal structural and functional co-alterations linked to delay discounting, particularly in brain regions involved in reward salience, executive control, and visual attention and connecting white matter tracts. Importantly, these multimodal networks were weaker in persons with CUD, indicating less cognitive control that may contribute to impulsive behaviors.
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Affiliation(s)
- Christina S Meade
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Box 102848, Durham, NC, 27708, USA.
- Brain Imaging and Analysis Center, Duke University, Durham, NC, USA.
| | - Xiang Li
- Brainnetome Center and National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, China
| | - Sheri L Towe
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Box 102848, Durham, NC, 27708, USA
| | - Ryan P Bell
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Box 102848, Durham, NC, 27708, USA
| | - Vince D Calhoun
- Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Atlanta, GA, USA
| | - Jing Sui
- Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Atlanta, GA, USA.
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10
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Steep Discounting of Future Rewards as an Impulsivity Phenotype: A Concise Review. Curr Top Behav Neurosci 2020; 47:113-138. [PMID: 32236897 DOI: 10.1007/7854_2020_128] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This chapter provides an overview over the behavioral economic index of impulsivity known as delay discounting. Specifically, delay discounting refers to an individual's preference for smaller immediate rewards over a larger delayed rewards. The more precipitously an individual discounts future rewards, the more impulsive they are considered to be. First, the chapter reviews the nature of delay discounting as a psychological process and juxtaposes it with nominally similar processes, including other facets of impulsivity. Second, the chapter reviews the links between delay discounting and numerous health behaviors, including addiction, attention deficit/hyperactivity disorder, and obesity. Third, the determinants of individual variation in delay discounting are discussed, including both genetic and environmental contributions. Finally, the chapter evaluates delay discounting as a potentially modifiable risk factor and the status of clinical interventions designed to reduce delay discounting to address deficits in self-control in a variety of maladaptive behaviors.
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11
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Hahn H, Kalnitsky S, Haines N, Thamotharan S, Beauchaine TP, Ahn WY. Delay Discounting of Protected Sex: Relationship Type and Sexual Orientation Influence Sexual Risk Behavior. ARCHIVES OF SEXUAL BEHAVIOR 2019; 48:2089-2102. [PMID: 31414329 DOI: 10.1007/s10508-019-1450-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 05/06/2023]
Abstract
Sexual discounting, which describes delay discounting of later protected sex vs. immediate unprotected sex (e.g., sex now without a condom vs. waiting an hour to have sex with a condom), is consistently linked to sexual risk behavior. Estimates suggest that over two-thirds of HIV transmissions occur between individuals in committed relationships, but current sexual discounting tasks examine sexual discounting only with hypothetical strangers, leaving a gap in our understanding of sexual discounting with committed sexual partners. We used the Sexual Discounting Task (SDT) to compare discounting rates between men who have sex with men (MSM; n = 99) and heterosexual men (n = 144) and tested a new SDT condition evaluating sexual discounting with main partners. MSM in committed relationships discounted protected sex with their main partner at higher rates than heterosexual men, and discounting rates correlated with self-report measures of condom use, impulsivity/sensation seeking, and substance use. These findings suggest that sexual discounting is a critical factor potentially related to increased HIV transmission between MSM in committed relationships and may be an important target for intervention and prevention.
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Affiliation(s)
- Hunter Hahn
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA.
| | - Samuel Kalnitsky
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
| | - Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
| | - Sneha Thamotharan
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Child and Adolescent Psychiatry, Rhode Island Hospital, Providence, RI, USA
| | | | - Woo-Young Ahn
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
- Department of Psychology, Seoul National University, Seoul, Korea
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12
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Appelhans BM, Tangney CC, French SA, Crane MM, Wang Y. Delay discounting and household food purchasing decisions: The SHoPPER study. Health Psychol 2019; 38:334-342. [PMID: 30896220 DOI: 10.1037/hea0000727] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Delay discounting is a neurocognitive trait that has been linked to poor nutritional health and obesity, but its role in specific dietary choices is unclear. This study tested whether individual differences in delay discounting are related to the healthfulness of household food purchases and reliance on nonstore food sources such as restaurants. METHOD The food purchases of 202 primary household food shoppers were objectively documented for 14 days through a food receipt collection and analysis protocol. The nutrient content of household food purchases was derived for each participant, and the overall diet quality (Healthy Eating Index-2015) and energy density (kcal/g) of foods and beverages were calculated. The proportion of energy from nonstore food sources was also derived. Delay discounting was assessed with a choice task featuring hypothetical monetary rewards. RESULTS Data were available for 12,624 foods and beverages purchased across 2,340 shopping episodes. Approximately 13% of energy was purchased from restaurants and other nonstore food sources. Steeper discounting rates were associated with lower overall Healthy Eating Index-2015 scores and a higher energy density (kcal/g) of purchased foods. Associations were attenuated but remained statistically significant when accounting for body mass index and sociodemographic variables. Discounting rates were unrelated to reliance on nonstore food sources or the energy density of purchased beverages. CONCLUSIONS Delay discounting is related to the healthfulness of food purchases among primary household shoppers. As food purchasing is a key antecedent of dietary intake, delay discounting may be a viable target in dietary and weight management interventions. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Affiliation(s)
| | | | - Simone A French
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota
| | - Melissa M Crane
- Department of Preventive Medicine, Rush University Medical Center
| | - Yamin Wang
- Department of Preventive Medicine, Rush University Medical Center
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