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The goal of this study is to learn whether a single non-invasive brain stimulation alpha-transcranial alternating current stimulation (alpha-tACS) session changes measures of excitability in the prefrontal cortex. It will also learn whether these changes predict differences in habitual action selection in a laboratory task and whether the effects depend on alcohol use history. The main questions it aims to answer are: Does alpha-tACS reduce habitual action selection by reducing excitability in the prefrontal cortex? Is alpha-tACS most effective in reducing habitual action selection in hazardous drinkers who engaged in binge-drinking during adolescence? Researchers will compare alpha-tACS to sham stimulation to see if alpha-tACS changes habitual action selection by changing prefrontal excitability. Participants will: Visit the lab for behavioral training Visit the imaging center for an MRI session Visit the lab to receive alpha-tACS or sham stimulation during behavioral testing and undergo EEG recordings before and after stimulation Visit the imaging center for a repeat MRI session Provide a small sample of blood from a finger-prick in the first and last visits.
The purpose of this study is to understand social contexts and alcohol use. We hope to learn how being around peers affects alcohol consumption in young adults. About 200 young adults who drink alcohol frequently will take part in the study. This research is being funded by the National Institute on Alcohol Abuse and Alcoholism (NIAAA). Participation involves one in-person screening session with a same-sex platonic friend. Then participants will complete four in-person laboratory sessions where they will drink beverages containing alcohol or no alcohol. After completion of the laboratory sessions, participants will complete smartphone surveys for 28 days. Lastly, they will complete follow-up surveys 6 months and 12 months post-study enrollment.
This randomized control trial study among Pre-exposure prophylactic users (PrEP) aims to learn and determine the efficacy of Screening, brief intervention, and referral to treatment (SBRIT) in reducing the risk of alcohol use. The main questions it aims to answer are: 1. How alcohol use impacts the PrEP continuum and to understand how early intervention and treatment approach affects alcohol use and PrEP adherence. 2. Investigate the effectiveness of the SBIRT intervention in preventing hazardous alcohol use and its impact on gut dysbiosis in PrEP users. 3. To determine alterations in the gut microbiome (dysbiosis), intestinal homeostasis, systemic inflammation, and markers of liver disease associated with hazardous alcohol use among PrEP users.
Approximately 1 out of every 3 adults experiencing homelessness has a current alcohol use disorder (AUD). Alcohol use plays a central role in increased morbidity and mortality in this population, with some studies suggesting it plays a direct role in as many as 17% of deaths. Alcohol is also a leading cause of homelessness and contributes to its chronicity by inhibiting progress toward obtaining employment and a stable living environment. Shelter-based treatments are common, but compliance is often poor. There are many documented challenges to effectively implementing traditional evidence-based interventions in shelter settings. In the current project, we will conduct a randomized controlled trial. Adults currently experiencing homelessness who report hazardous alcohol use (N = 600) will be recruited from five shelters across the Dallas, TX and Oklahoma City, OK metropolitan areas. Individuals will attend screening and training visits, then complete one week of self-monitoring (via smartphone app) before being randomized to receive either standard shelter-based treatment (Usual Care; UC), or the Smart-T Alcohol intervention + UC. The Smart-T Alcohol intervention offers on-demand content and automated contextually tailored messages to reduce alcohol consumption. The intervention period will span eight-weeks (i.e., weeks 2-9), with follow-up assessments occurring at weeks 9, 13, and 26. All participants will complete brief daily smartphone-based surveys for 13 weeks. Aims of the project will be to assess the effects of the Smart-T Alcohol intervention on alcohol use and alcohol-related problems (Aim 1), intervention effects on key drinking risk indicators and their mediation of use outcomes (Aim 2), and identify specific subpopulations (e.g., women, racial/ethnic minorities, younger adults; Exploratory Aim 3) for which the intervention is most effective. Findings will provide a rigorous evaluation of the efficacy of the Smart-T Alcohol intervention and guide future smartphone-based interventions for this population.
The goal of this trial is to test a modified mobile health intervention (with a group component) relative to a mobile health intervention in a two-arm randomized trial with 500 young African American women who are human immunodeficiency virus (HIV)-negative and who misuse alcohol. The expected outcomes are to: (1) determine the efficacy of the virtual group component in reducing alcohol use and sexual risk and increasing pre-exposure prophylaxis (PrEP) utilization; and (2) understand selected outcomes for implementation. Participants will be randomized to receive either the mHealth app or the mHealth app plus the group component, and followed up at 3- and 6-months post-enrollment.
The objective of this study is to develop and pilot a program designed to improve mental health outcomes and reduce suicide risk during the transition from military to civilian life. It is hypothesized that the Transition Health and Resilience through Valued Experiences (THRiVE) program, to be developed as part of this study, will meet participant recruitment, retention, and satisfaction benchmarks (primary outcomes) and show positive preliminary effects on mental health symptoms, risk factors for suicidal ideation, and psychosocial functioning outcomes (secondary outcomes). The specific aims of this study are to: 1. Develop a small-group, peer-led, cross-cutting prevention program for newly separated veterans (NSVs) called THRiVE and 2. Evaluate the feasibility, acceptability, and preliminary effects of the THRiVE program on mental health symptoms, risk factors for suicidal ideation, and psychosocial functioning outcomes. Up to 40 NSVs participating in this Stage 1 pilot study will complete validated self-report measures at baseline, immediately after completing the THRiVE program (post-THRiVE), and 3 months after completing the THRiVE program (follow-up). The duration of a participant's time in the study is anticipated to be 5 months.
The purpose of the proposed research is to evaluate (1) whether a future possible self task (FPST) can lead to changes drinking identity (DI; how much one associates one's self with drinking) and (2) whether the FPST and changes in drinking identity also change indicators of alcohol misuse . This study focuses on individuals who are graduating from highly school, which is a time of transition and identity change. If such changes can be demonstrated, DI may be a mechanism for alcohol misuse and the FPST may be an additional, novel intervention strategy to reduce alcohol misuse during the post-high school transition. The goal of this clinical trial is to test the future possible self task (FPST) in individuals who are about to graduate from high school. The main questions it aims to answer are: * Can the FPST change drinking identity (a risk factor for alcohol misuse)? * Can the FPST reduce risks for alcohol misuse? Participants will complete the FPST, a task that involves writing for 20 minutes, and will answer a series of questionnaires and computer-based word categorization tasks. Participants will be followed for a year after completing the FPST. Researchers will compare different versions of the FPST and different doses (one writing sessions vs. 3 writing sessions) to see which are more effective for changing drinking identity and reducing risks for alcohol misuse.