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Wycoff AM, Padovano HT, Miranda R. Cannabis craving in response to alcohol cues among adolescents and young adults in the laboratory and in daily life. Exp Clin Psychopharmacol 2023; 31:674-682. [PMID: 36395043 PMCID: PMC10188650 DOI: 10.1037/pha0000614] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cannabis use among adolescents and young adults who drink alcohol is prevalent and relates to poorer clinical outcomes. Interrelated factors, such as cross-reactivity to alcohol cues, may contribute to the high prevalence of cannabis use among young persons who drink alcohol. We tested whether systematic presentation of alcohol cues in the laboratory and naturalistic presence of alcohol cues in daily life elicit cannabis craving. Data were compiled from two clinical trials. Participants (N = 54) were adolescents and young adults ages 15-24 who reported consuming alcohol at least twice per week, expressed interest in reducing alcohol use, and reported lifetime cannabis use. Participants provided laboratory and daily-life smartphone report data prior to randomization to treatment conditions in the parent trials. Mixed-effect models tested a priori hypotheses, which received mixed support. Cannabis craving was not heightened following alcohol-cue presentation in the laboratory but was elevated in daily life when alcohol cues were visible. The effect of laboratory alcohol cues was moderated by cannabis use frequency, with higher frequencies associated with greater cannabis craving, while the effect of daily-life alcohol cues on cannabis craving was not moderated by cannabis use frequency. Finally, alcohol cue-induced cannabis craving in the laboratory was associated with greater daily-life cannabis craving, irrespective of the presence of naturalistic alcohol cues. Overall, exposure to alcohol cues in daily life may flag situations with increased risk of cannabis craving, supporting the idea of cross cue reactivity and implicating naturalistic alcohol cues as an intervention target for individuals who co-use alcohol and cannabis. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Andrea M. Wycoff
- Center for Alcohol and Addiction Studies, Brown University School of Public Health, Providence, RI 02912
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI 02906
| | - Hayley Treloar Padovano
- Center for Alcohol and Addiction Studies, Brown University School of Public Health, Providence, RI 02912
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI 02906
| | - Robert Miranda
- Center for Alcohol and Addiction Studies, Brown University School of Public Health, Providence, RI 02912
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI 02906
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Stamates AL, Lau-Barraco C, Braitman AL. Daily impulsivity and alcohol expectancies: A multilevel examination of the acquired preparedness model. Alcohol Clin Exp Res 2023; 47:540-548. [PMID: 36877150 PMCID: PMC10240390 DOI: 10.1111/acer.15023] [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: 08/09/2022] [Revised: 01/03/2023] [Accepted: 01/13/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND The acquired preparedness model (APM) integrates personality traits and psychosocial learning to posit amechanism whereby individuals initiate and continue alcohol use. The present study examined within-person associations between impulsivity, alcohol expectancies, alcohol use, and alcohol problems to inform daily process models of drinking and test the APM. METHODS Participants were 89 college student drinkers who completed momentary reports (three random and two user-initiated reports) for 14 days. Multilevel mediation analyses examined whether daily associations between impulsivity and alcohol use and problems were mediated by positive and negative expectancies. RESULTS Daily impulsivity was positively associated with daily positive expectancies, prior to drinking. Greater daily positive expectancies were associated with more alcohol consumed and alcohol problems that day. The indirect effects were significant, indicating greater than usual impulsivity was associated with greater alcohol use and alcohol problems through greater positive expectancies. Impulsivity was positively associated with negative expectancies at the within-subject and between-subject levels, but negative expectancies did not serve as a mediator between impulsivity and either alcohol outcome. CONCLUSIONS This is the first study to test the APM at the day level. Findings supported daily fluctuations in beliefs regarding the positive effects of alcohol as a salient mechanism explaining the link between daily impulsivity and level of alcohol use. Because impulsivity was linked to changes in expectancy states that were proximal to drinking that day, this information may be used to develop prevention and intervention programs to reduce alcohol harms.
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Affiliation(s)
- Amy L. Stamates
- Department of Psychology, University of Rhode Island, Kingston, Rhode Island, USA
| | - Cathy Lau-Barraco
- Department of Psychology, Old Dominion University, Norfolk, Virginia, USA
- Virginia Consortium Program in Clinical Psychology, Norfolk, Virginia, USA
| | - Abby L. Braitman
- Department of Psychology, Old Dominion University, Norfolk, Virginia, USA
- Virginia Consortium Program in Clinical Psychology, Norfolk, Virginia, USA
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Parnes JE, Mereish EH, Meisel SN, Treloar Padovano H, Miranda R. In the Presence of Parents: Parental Heterosexism and Momentary Negative Affect and Substance Craving Among Sexual Minority Youth. J Adolesc Health 2023; 72:230-236. [PMID: 36473778 PMCID: PMC10262696 DOI: 10.1016/j.jadohealth.2022.09.029] [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: 02/04/2022] [Revised: 08/15/2022] [Accepted: 09/23/2022] [Indexed: 12/11/2022]
Abstract
PURPOSE We examined the influence of parental heterosexism on in vivo negative affect and substance craving among sexual minority youth (SMY) who use nicotine and other substances, and if that relation was strengthened when in the presence of their parent(s). METHODS SMY (n = 42, ages 15-19) completed baseline assessments, including experiences of parental heterosexism (PH), and a 30-day ecological momentary assessment. Ecological momentary assessment reports included affective states (i.e., anger, anxiety, depression), substance craving (i.e., nicotine, cannabis, alcohol), and other contextual factors (e.g., presence of parents). Multilevel logistic regression models evaluated the study hypotheses. RESULTS PH was associated with greater odds of reporting in-the-moment anger, depression, cannabis craving, and alcohol craving. Parental presence was associated with lower odds of reporting anxiety or depression, and greater odds of reporting nicotine craving. There was a significant interaction when predicting the odds of reporting anxiety. For SMY low in PH, parental presence was related to lower odds of reporting anxiety. As PH increased, parental presence had diminishing associations with the odds of reporting anxiety. DISCUSSION Parenting behaviors can serve as protective and risk factors for negative affect and substance craving among SMY. Improving family-based interventions for SMY may be integral for enhancing healthy development and reducing health disparities.
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Affiliation(s)
- Jamie E Parnes
- Center for Alcohol and Addiction Studies, Department of Behavioral & Social Sciences, Brown University, Providence, Rhode Island; E. P. Bradley Hospital, Riverside, Rhode Island
| | - Ethan H Mereish
- Center for Alcohol and Addiction Studies, Department of Behavioral & Social Sciences, Brown University, Providence, Rhode Island; Department of Psychology, University of Maryland, College Park, Maryland; Department of Health Studies, American University, Washington, District of Columbia.
| | - Samuel N Meisel
- Center for Alcohol and Addiction Studies, Department of Behavioral & Social Sciences, Brown University, Providence, Rhode Island; E. P. Bradley Hospital, Riverside, Rhode Island
| | - Hayley Treloar Padovano
- Center for Alcohol and Addiction Studies, Department of Behavioral & Social Sciences, Brown University, Providence, Rhode Island
| | - Robert Miranda
- Center for Alcohol and Addiction Studies, Department of Behavioral & Social Sciences, Brown University, Providence, Rhode Island; E. P. Bradley Hospital, Riverside, Rhode Island
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Wycoff AM, Motschman CA, Griffin SA, Freeman LK, Trull TJ. Momentary subjective responses to alcohol as predictors of continuing to drink during daily-life drinking episodes. Drug Alcohol Depend 2022; 241:109675. [PMID: 36332592 PMCID: PMC10233448 DOI: 10.1016/j.drugalcdep.2022.109675] [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: 11/26/2021] [Revised: 09/27/2022] [Accepted: 10/20/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE Subjective response to alcohol's stimulating and sedating effects is a person-level risk factor for heavy drinking and alcohol use disorder. Longitudinal and laboratory studies have demonstrated that at-risk individuals experience greater stimulation and lower sedation while drinking. While between-person subjective responses inform risk and etiology, in-the-moment assessments during daily-life drinking may elucidate the within-person processes by which stimulation and sedation may lead to heavier drinking. We aimed to characterize these momentary processes by testing momentary stimulation and sedation during drinking as predictors of subsequently continuing to drink during densely sampled, daily-life drinking episodes. PROCEDURES 113 adults (54 with borderline personality disorder and 59 community participants; 77.9% female) completed ecological momentary assessment for 21 days, reporting momentary subjective stimulation and sedation throughout drinking episodes and momentary alcohol use after drink initiation (i.e., continued drinking). FINDINGS GLMMs demonstrated that greater day-level stimulation (OR=1.48, 95% CI=[1.20, 1.82], p<.001), greater person-level stimulation (OR=1.63, 95% CI=[1.05, 2.53], p=.031), and lower momentary sedation (OR=0.54, 95% CI=[0.41, 0.71], p<.001) predicted continued drinking. CONCLUSIONS Although greater stimulation and lower sedation have been conceptualized as individual-level risk factors for heavy drinking, our findings suggest that these associations are accompanied by processes that operate within person. Our results suggest that greater stimulation may confer risk for heavy drinking at the level of the drinking episode, possibly acting as positive reinforcement that may contribute to heavier drinking during future episodes. In contrast, lower sedation may primarily confer in-the-moment risk by contributing to momentary decisions to keep drinking within an episode.
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Affiliation(s)
- Andrea M Wycoff
- Department of Psychological Sciences, University of Missouri, 210 McAlester Hall, Columbia, MO 65211, USA.
| | - Courtney A Motschman
- Department of Psychological Sciences, University of Missouri, 210 McAlester Hall, Columbia, MO 65211, USA
| | - Sarah A Griffin
- Department of Psychological Sciences, University of Missouri, 210 McAlester Hall, Columbia, MO 65211, USA
| | - Lindsey K Freeman
- Department of Psychological Sciences, University of Missouri, 210 McAlester Hall, Columbia, MO 65211, USA
| | - Timothy J Trull
- Department of Psychological Sciences, University of Missouri, 210 McAlester Hall, Columbia, MO 65211, USA
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Stamates AL, Lau-Barraco C, Braitman AL. Daily impulsivity is associated with alcohol use and problems via coping motives, but not enhancement motives. Drug Alcohol Depend 2022; 232:109333. [PMID: 35123366 DOI: 10.1016/j.drugalcdep.2022.109333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND The present study sought to determine daily associations between impulsivity, coping and enhancement motives, alcohol use, and alcohol problems in the natural environment. METHODS Participants were 89 (47 women) heavy drinking, college students from a university in the southeastern U.S. who completed a 14-day ecological momentary assessment study. Each day, participants completed three random reports of momentary impulsivity and indicators of drinking motives and two additional reports at the beginning and end of any drinking occasions. RESULTS A series of multilevel mediation models were tested to examine indirect effects from impulsivity to alcohol use and alcohol problems through coping and enhancement motives. At the within-person level, results revealed that greater than usual impulsivity experienced prior to drinking was associated with greater coping motives, and this in turn was associated with greater number of drinks consumed that day (all p values <0.001). A similar indirect effect was revealed when impulsivity predicted alcohol problems that day through coping motives (p values range: <0.001 to .01). Greater enhancement motives than usual were associated with greater number of drinks consumed and alcohol problems experienced that day (p values range: <0.001 to.001), but associations with impulsivity were nonsignificant. CONCLUSIONS Findings supported daily fluctuations in drinking to cope motives as a salient mechanism explaining the link between daily impulsivity and level of alcohol use and alcohol problems. Fluctuations in daily impulsivity were associated with changes in motivations to drink which may benefit efforts aimed at reducing alcohol harms among young adults.
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Affiliation(s)
- Amy L Stamates
- University of Rhode Island, Department of Psychology, 142 Flagg Road, Chafee Hall, Kingston, RI 02881, USA.
| | - Cathy Lau-Barraco
- Old Dominion University, Department of Psychology, 5115 Hampton Blvd., Mills Godwin Building, Norfolk, VA 23529, USA; Virginia Consortium Program in Clinical Psychology, 555 Park Avenue, Norfolk, VA 23504, USA
| | - Abby L Braitman
- Old Dominion University, Department of Psychology, 5115 Hampton Blvd., Mills Godwin Building, Norfolk, VA 23529, USA
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Emery NN, Carpenter RW, Meisel SN, Miranda R. Effects of topiramate on the association between affect, cannabis craving, and cannabis use in the daily life of youth during a randomized clinical trial. Psychopharmacology (Berl) 2021; 238:3095-3106. [PMID: 34331080 PMCID: PMC8908944 DOI: 10.1007/s00213-021-05925-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/05/2021] [Indexed: 11/29/2022]
Abstract
RATIONALE Topiramate is an anticonvulsant currently under study for treating substance use disorders. Topiramate is thought to reduce substance use by attenuating craving and the rewarding effects of acute substance use through its concurrent GABAergic agonism and glutamatergic antagonism. Importantly, topiramate also impacts mood states central to many models of substance use. Despite this, little previous research has examined whether topiramate attenuates the respective associations of affect and craving with substance use. OBJECTIVES We conducted a secondary analysis of 63 youths that exhibited heavy cannabis use, aged 15-24 years, who were randomized in a double-blinded 6-week clinical trial comparing the effects of topiramate (up to 200 mg/day) and placebo on cannabis use. Ecological momentary assessment data were leveraged to model the role positive affect, negative affect, and craving on use over the 6-week period and whether topiramate attenuated associations between these feeling states and cannabis use. RESULTS Findings showed that craving was positively associated with use at the within-person level, while positive affect was negatively associated with use at the between-person level. Topiramate appears to attenuate the negative association of between-person positive affect (i.e., average) and cannabis use. Specifically, those in the placebo condition exhibited this inverse association between average positive affect and use while those in topiramate condition did not. No other significant affect or affect × medication condition interactions were observed. CONCLUSIONS These findings implicate craving and low positive affect as important risk factors for cannabis use in youth in treatment. Topiramate may attenuate this association for positive affect.
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Affiliation(s)
- Noah N. Emery
- Department of Psychology, Colorado State University, Fort Collins, CO, USA
| | - Ryan W. Carpenter
- Department of Psychological Sciences, University of Missouri St. Louis, St. Louis, MO, USA
| | - Samuel N. Meisel
- Center for Alcohol and Addiction Studies, Brown University, Box S121-4, Providence, RI 02912, USA
| | - Robert Miranda
- Center for Alcohol and Addiction Studies, Brown University, Box S121-4, Providence, RI, 02912, USA.
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Treloar Padovano H, Miranda R. Incubation of alcohol craving as it naturally occurs in a developmentally diverse sample of dependent and nondependent drinkers. Addict Biol 2021; 26:e12934. [PMID: 32666651 DOI: 10.1111/adb.12934] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 06/02/2020] [Accepted: 06/14/2020] [Indexed: 12/21/2022]
Abstract
Longer periods of abstinence are shown to enhance response to alcohol cues among alcohol-dependent animals and humans, a phenomenon described as "incubation of craving." The present work examined the effects of days since last drink on general craving and alcohol-cued craving as it occurs in daily life and explored whether effects were influenced by age and dependence. Three samples were combined to include 266 drinkers ranging in age from 14 to 67 years recruited from the community; about half (59.4%) met criteria for alcohol dependence. Drinkers used handheld electronic devices to rate their subjective alcohol craving (assessed as "urge to drink") and situational context (e.g., presence of visible alcohol cues) at nondrinking times in daily life, with days since last alcohol use culled from timeline follow-back interviews and real-world reports. Drinkers at the lower end of the age range in this sample reported greater intensification of craving with more days of continuous abstinence than drinkers at the upper end of the age range. Age was not related to incubation of cue-elicited craving, in specific, however. For drinkers with dependence, craving when in the presence of visible alcohol cues intensified with more days of continuous abstinence, suggesting craving incubation. This study builds from important foundational work to demonstrate that incubation of cue-elicited craving occurs in dependent drinkers and applies regardless of age. Inasmuch as craving is a motivational drive that maintains alcohol use, understanding factors that influence craving in daily life holds promise for improving clinical care.
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Affiliation(s)
- Hayley Treloar Padovano
- Department of Psychiatry and Human Behavior, Department of Behavioral and Social Sciences, Center for Alcohol and Addiction Studies Brown University Providence Rhode Island USA
| | - Robert Miranda
- Department of Psychiatry and Human Behavior, Department of Behavioral and Social Sciences, Center for Alcohol and Addiction Studies Brown University Providence Rhode Island USA
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Rate of alcohol consumption in the daily life of adolescents and emerging adults. Psychopharmacology (Berl) 2019; 236:3111-3124. [PMID: 31104151 PMCID: PMC6832807 DOI: 10.1007/s00213-019-05262-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 04/26/2019] [Indexed: 01/31/2023]
Abstract
RATIONALE Alcohol consumption in adolescents and emerging adults is a significant issue. However, our understanding of the topography of alcohol use within drinking episodes in this population is at a nascent stage. OBJECTIVES This study characterized rate of alcohol consumption in the daily lives of problem drinkers ages 16-24 years (N = 75). We examined whether AUD symptoms and the presence of peers, factors relevant to alcohol consumption in youth, were associated with rate of consumption. METHODS Ecological momentary assessment (EMA) was used (Nobservations = 799). Rate of consumption was defined as change in estimated blood alcohol concentration (eBAC) relative to the start of the drinking episode. Piecewise multi-level modeling was used to test hypotheses. As a comparison, we examined whether indicators of quantity and frequency (Q-F) were associated with AUD symptoms and presence of peers. RESULTS For all participants, eBAC increased sharply early in the episode, then plateaued. Participants with more AUD symptoms or who were in the presence of peers had significantly steeper increases in eBAC over the early part of the episode. Participants with more AUD symptoms were also more likely to engage in binge-like behavior. For Q-F, only peak eBAC and peak number of standard drinks were associated with AUD symptoms, and not presence of peers. CONCLUSIONS Findings highlight the value of rate of consumption as an indicator of use in youth, one sensitive to the influence of relevant person-level and situational factors. Intervention efforts may benefit from targeting the speed at which youth drink.
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Miranda R, Wemm SE, Treloar Padovano H, Carpenter RW, Emery NN, Gray JC, Mereish EH. Weaker Memory Performance Exacerbates Stress-Induced Cannabis Craving in Youths' Daily Lives. Clin Psychol Sci 2019; 7:1094-1108. [PMID: 31737439 DOI: 10.1177/2167702619841976] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Theories of addiction posit that stimuli associated with drug use, including both exteroceptive (e.g., paraphernalia) and interoceptive (e.g., feeling tense or "stressed"), evoke craving and contribute to the pathogenesis of substance misuse. Control over drug cue response and stress is essential for moderating use. Building from laboratory data supporting associations between cue exposure, stress, and craving, this study tested whether these associations generalize to real-world settings and examined whether a well-vetted neurocognitive control capacity, i.e., working memory (WM), moderated associations. Youth (N = 85; 15-24 years) completed baseline and ecological momentary assessments. Cue exposure and participants' average stress predicted higher craving. Youth with weaker WM experienced stronger craving at higher-stress moments but not when faced with cues. Interactions were present for both previous-moment and same-moment stress. Craving among adolescents with stronger WM was not swayed by momentary stress. Findings suggest stronger WM protects against craving at more stressful moments.
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Affiliation(s)
- Robert Miranda
- Center for Alcohol and Addiction Studies, Brown University
| | | | | | | | - Noah N Emery
- Center for Alcohol and Addiction Studies, Brown University
| | - Joshua C Gray
- Department of Medical and Clinical Psychology, Uniformed Services University
| | - Ethan H Mereish
- Center for Alcohol and Addiction Studies, Brown University; Department of Health Studies, American University
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van Roekel E, Keijsers L, Chung JM. A Review of Current Ambulatory Assessment Studies in Adolescent Samples and Practical Recommendations. JOURNAL OF RESEARCH ON ADOLESCENCE : THE OFFICIAL JOURNAL OF THE SOCIETY FOR RESEARCH ON ADOLESCENCE 2019; 29:560-577. [PMID: 31573762 PMCID: PMC6790669 DOI: 10.1111/jora.12471] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The use of ambulatory assessment (AA) and related methods (experience sampling, ecological momentary assessment) has greatly increased within the field of adolescent psychology. In this guide, we describe important practices for conducting AA studies in adolescent samples. To better understand how researchers have been implementing AA study designs, we present a review of 23 AA studies that were conducted in adolescent samples from 2017. Results suggest that there is heterogeneity in how AA studies in youth are conducted and reported. Based on these insights, we provide recommendations with regard to participant recruitment, sampling scheme, item selection, power analysis, and software choice. Further, we provide a checklist for reporting on AA studies in adolescent samples that can be used as a guideline for future studies.
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Piasecki TM. Assessment of Alcohol Use in the Natural Environment. Alcohol Clin Exp Res 2019; 43:564-577. [PMID: 30748019 PMCID: PMC6443469 DOI: 10.1111/acer.13975] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 02/03/2019] [Indexed: 02/02/2023]
Abstract
The current article critically reviews 3 methodological options for assessing drinking episodes in the natural environment. Ecological momentary assessment (EMA) typically involves using mobile devices to collect self-report data from participants in daily life. This technique is now widely used in alcohol research, but investigators have implemented diverse assessment strategies. This article focuses on "high-resolution" EMA protocols that oversample experiences and behaviors within individual drinking episodes. A number of approaches have been used to accomplish this, including using signaled follow-ups tied to drinking initiation, asking participants to log entries before and after individual drinks or drinking episodes, and delivering frequent signaled assessments during periods of the day when alcohol use is most common. Transdermal alcohol sensors (TAS) are devices that are worn continuously and are capable of detecting alcohol eliminated through the skin. These methods are appealing because they do not rely upon drinkers' self-report. Studies using TAS have been appearing with greater frequency over the past several years. New methods are making the use of TAS more tractable by permitting back-translation of transdermal alcohol concentration data to more familiar estimates of blood alcohol concentration or breath alcohol concentration. However, the current generation of devices can have problems with missing data and tend to be relatively insensitive to low-level drinking. An emerging area of research investigates the possibility of using mobile device data and machine learning to passively detect the user's drinking, with promising early findings. EMA, TAS, and sensor-based approaches are all valid, and tend to produce convergent information when used in conjunction with one another. Each has a unique profile of advantages, disadvantages, and threats to validity. Therefore, the nature of the underlying research question must dictate the method(s) investigators select.
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Affiliation(s)
- Thomas M Piasecki
- Department of Psychological Sciences, University of Missouri, Columbia, Missouri
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