Clinical Research Directory

Brain Function and Cognitive Control Training in Children With Obsessive-Compulsive Symptoms

The goal of this clinical trial is to learn about brain function and cognition in children ages 8-12 who have subclinical obsessive-compulsive symptoms (OCS), such as unwanted thoughts or repetitive behaviors. The study will also examine whether patterns of brain activity are related to how children respond to cognitive training. The main questions this study aims to answer are: * Are there different patterns of brain activity related to cognitive control among children with OCS? * Are these patterns related to differences in OCS or cognition? * Can brain activity before training help predict changes in cognitive control or OCS severity after cognitive training? Participants will: * Complete clinical interviews, questionnaires, and tests of cognition. * Have a magnetic resonance imaging scan while completing a cognitive control task. * Complete video-game-based cognitive training on an iPad for about 25 minutes a day, 5 days a week, for 4 weeks. * Complete another set of clinical interviews and questionnaires after the training.

Synchronization of Theta to Influence Memory

This study aims to clarify relations between brain oscillations and two cognitive functions: cognitive control and memory.

Human Cognition During Surgery: Stimulation-based and Cholinergic Modulation

This is a research study to determine how COBENFY KarXT (FDA approved), a drug which has been approved for treatment of certain disorders, affects brain activity and cognitive tasks which may be regulated by the cholinergic system. This study aims to answer: 1) how cholinergic circuitries act during task performance in humans, and 2) develop a better understanding of how cognitive control interacts with learning, memory and decision making in the setting of cholinergic manipulation. Participants will complete a single treatment arm, regardless of which surgical procedure they are to receive. An anesthesiologist or other clinical staff will administer either the drug or the saline at a critical point which addresses the research questions, prior to patient surgery. This will be either with the drug, or the placebo pill. Half of the participants will be randomized to receive the drug, and the other half of these the placebo. Participants will be unaware whether the actual drug has been received. Essential tremor patients who participate will complete a cognitive task during an awake surgery. Epilepsy patients who participate will have a resting state recording during the procedure from the deep cortical layers of the brain. A probe will be used during the surgery to measure the effects of this drug and other procedures of the study on the cholinergic system. This probe is the clinical probe known as the AlphaOmega, which is FDA approved for standard of care procedures. Researchers will compare the brain activity between treatment arms to determine what brain activity changes based on the cholinergic manipulation.

Fascial Yoga in Menopausal Women

Aim: The aim of this study is to evaluate the effects of a structured fascial yoga-based behavioral intervention on perceived stress, cognitive control, and cognitive flexibility in menopausal women. The study aims to determine whether a non-pharmacological and non-invasive behavioral intervention can support psychological and cognitive functioning and reduce perceived stress in menopausal women. Design: This study is designed as a randomized controlled, pretest-posttest experimental study with a post-intervention follow-up assessment. Eligible participants will be randomly assigned to either the intervention group or the control group receiving usual care. Outcomes will be assessed at baseline, immediately after the intervention, and at follow-up to evaluate both the immediate and sustained effects of the intervention. Method: A total of 60 menopausal women aged 45-65 years will be recruited from the menopause outpatient clinic and randomly assigned to either the intervention group or the control group. The intervention group will participate in a 12-week online fascial yoga program consisting of two 60-minute sessions per week. In this study, fascial yoga is defined as a fascia-focused, non-pharmacological, and non-invasive behavioral intervention that includes myofascial release techniques, breath regulation, body awareness, and basic yoga practices to support stress regulation and cognitive functioning. The program will include myofascial release techniques, basic yoga postures suitable for all physical fitness levels, and structured breathing exercises. All sessions will be conducted online in a group format, and no audio or video recordings will be taken. The control group will continue to receive routine outpatient care during the study period. After completion of the follow-up assessments, the fascial yoga program will be offered to participants in the control group upon request. Data will be collected at three time points: at baseline before the intervention, immediately after completion of the 12-week intervention, and at the follow-up assessment 8 weeks after the intervention. Perceived stress, cognitive control, and cognitive flexibility will be assessed using validated self-report questionnaires. Hypotheses: H1: Menopausal women participating in the fascial yoga intervention will show a significant reduction in perceived stress levels compared with the control group at post-intervention and follow-up assessments. H2: Menopausal women participating in the fascial yoga intervention will show a significant improvement in cognitive control and cognitive flexibility compared with the control group at post-intervention and follow-up assessments.