5 Clinical Trials for Various Conditions
This study investigates whether slow-frequency repetitive transcranial magnetic stimulation targeting frontal pole can acutely modulate brain circuits which show abnormal functioning during behavioral flexibility in obsessive-compulsive disorder, as well as performance on a behavioral task.
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 the current study is to investigate the role of Cognitive Remediation Therapy (CRT) as a pre-treatment intervention for adolescents who are hospitalized for Anorexia Nervosa (AN). The primary aims are to determine if CRT can result in greater treatment engagement post-discharge, increased rate of weight gain post-discharge, reduction in symptom accommodation, and increased behavioral flexibility in adolescents and parents.
This study, at the Western Human Nutrition Research Center (WHNRC), will focus on whether or not achieving and maintaining a healthy body weight is the most important health promoting recommendation of the Dietary Guidelines for Americans (DGA).The investigators hypothesize that improvement in cardiometabolic risk factors resulting from eating a DGA style diet will be greater in people whose energy intake is restricted to result in weight loss compared to those who maintain their weight. The investigators further propose that during a state of energy restriction, a higher nutrient quality diet such as the DGA style diet pattern, will result in greater improvement in cardiometabolic risk factors compared to a typical American diet (TAD) pattern that tends to be lower nutrient quality (more energy-dense and less nutrient-rich.)
Family caregivers for persons with dementia report high levels of depression, stress, and burden. Caregivers' limited time, transportation constraints, and unpredictable schedules make on-line, self-guided interventions more accessible and scalable. Acceptance and Commitment Therapy (ACT) is an established and effective in-person therapy, well-suited to the dementia care giving context where caregivers cannot minimize stress exposure, and report difficult thoughts and emotions. ACT for Caregivers is an on-line self-guided ACT intervention that showed effectiveness in a Stage I pilot (n=52) with participants reporting decreased depressive symptoms, stressful reactions to caring, and caregiver burden, and increased quality of life and positive aspects of caring (all p \<.05). Learning from the pilot, the current Stage III intervention will shorten the program from 10 sessions to 6 sessions. The investigators introduce a wait list randomized control trial (RCT) design with fully longitudinal mixed methods to evaluate ACT for Caregivers. Data will be collected at pretest, post-test, and 6-weeks follow-up. Study aims are: 1) to evaluate ACT for Caregivers in a larger sample using an RCT, 2) to understand user experiences and the process of change by collecting short response data from all participants at all time points and interviewing a subset of participants in-depth at two time points, 3) to integrate quantitative and qualitative findings and examine areas of convergence and divergence. This project offers a promising prevention and intervention program to support family caregivers that is scalable, at low cost and with high impact.