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A randomized, double-blind, placebo-controlled study assessing the impact of health and wellness products on cognitive function and related health outcomes.
This is a parallel group, randomized, double-blind, placebo-controlled clinical study assessing the safety and effects of a novel nutritional product on self-reported cognitive function and health in adults that reside in the USA. Participants will take their assigned study product (active or placebo) for 8 weeks and answer validated electronic surveys assessing cognitive function delivered to them through a text message (SMS) link or through email.
The purpose of this study is to evaluate the acute effects of exogenous ketone monoester (KME) supplementation on cognitive function in three groups of adults aged 19-55 years: (1) obese, sedentary individuals; (2) lean, sedentary individuals; and (3) lean individuals who engage in regular physical activity (e.g., collegiate or amateur athletes). The main questions it aims to answer are to: * Assess the effects of acute KME supplementation versus placebo on cognitive, sensorimotor, and functional outcomes within groups. * Compare cognitive performance across the three groups. The primary outcome is cognitive performance assessed using the NIH Toolbox Cognition Battery. Secondary Outcomes include sensorimotor performance, measured using the Senaptec Sensory System, and driving performance, assessed with a driving simulator.
A randomized, double-blind, placebo-controlled direct-to-consumer study assessing the impact of health and wellness products on cognitive function and related health outcomes
The goal of this clinical trial is to examine the impact of a specific guided meditation (Twin Hearts Meditation; THM) on cognitive functioning and EEG dynamics in experienced and inexperienced meditators. The main questions it aims to answer are: * Will the experienced meditators outperform inexperienced meditators on the attention control tasks (Flanker, Trails A \& B) at baseline (pre-meditation)? * Will both groups show improvements in performance after meditation associated with mood and physiological state changes? * Will the experienced meditators show an overall mood profile of higher positive mood states and less negative mood states (Brunel Mood Scale subscale difference) at baseline (pre-meditation)? * Will both groups show mood state improvements after meditation? * Will the experienced meditators show differences in electrophysiological characteristics compared to inexperienced meditators? * Will inexperienced meditators exhibit shifts from their baseline resting-state EEG towards being more similar to the EEG characteristics of experienced meditators at baseline? * Will experienced meditators demonstrate differences in P300 latencies and amplitudes on the auditory oddball paradigm. Participants will: * Take a series of pre-meditation surveys. * Complete pre-meditation P300 auditory oddball task. * Complete pre-meditation cognitive behavioral task set. * Continuous 19-channel EEG recording before and after pre-recorded guided THM. * Take a series of post-meditation surveys. * Complete post-session P300 auditory oddball task. * Complete post-session cognitive behavioral task set.
The purpose of this research study is to explore ways to improve motor, cognitive and immune functions for aging adults using multiple techniques like lifestyle changes and risk factor management, as well as medications and supplements believed to have a positive effect on health.
The purpose of this study is to examine the impact of daily consumption of walnuts for 12 weeks on cognitive function, markers of inflammation and oxidative stress, and the gut microbiome in healthy adults age 55 years and older.
The purpose of this study is to examine whether an 8-week online educational group-based program tailored to people with systemic sclerosis can help improve cognitive function and well-being. The study team hypothesize that participants that receive the intervention will have better improvements immediately after treatment at week 8 in all cognitive function measures, non-cognitive symptoms, and self-management compared to those in the waitlist control.
The goal of this clinical trial is to investigate how iron status and heavy bleeding during the menopausal transition affect women's cognitive function and quality of life. The main questions it aims to answer are: * What is the association between iron status, cognitive function, mood, quality of family relationships, and quality of life in perimenopausal women? * How does iron repletion, via supplementation, affect cognitive function, mood, quality of family relationships, and quality of life in perimenopausal women? The investigators will compare the effect of iron supplements to a placebo (gelatin capsule) to see if iron supplements could improve iron status, cognitive function, mood, quality of family relationships, and quality of life of iron-deficient and/or anemic women undergoing the menopausal transition. Each participant will: * Make 2 visits (about 2 hours each - baseline and endline) to the Clinical Research Center at Purdue * Make a very brief visit at midpoint (about 10 minutes) for a checkup * Take a daily study supplement or placebo for 4 months
Individuals with depression often describe difficulties with memory, attention, concentration, and overall cognitive functioning, which can persist even after mood episodes get better, and can affect treatment and health outcomes. The primary objective of this pilot clinical trial is to evaluate the feasibility and acceptability of a manualized, 8-week, Compensatory Cognitive Training (CCT) intervention for Veterans who received treatment for MDD in the past year and have persistent cognitive functioning deficits. The investigators will compare Motivationally Enhanced Compensatory Cognitive Training for Major Depressive Disorder (ME-CCT-MDD) to a robust comparator, Goal-focused Supportive Contact (GSC), to evaluate differences in outcome measures. The investigators hypothesize that Motivationally Enhanced Compensatory Cognitive Training for Major Depressive Disorder (ME-CCT-MDD) will be feasible and acceptable to participants in a pilot trial of ME-CCT-MDD vs. Goal-focused supportive contact (GSC) for Veterans with recent MDD treatment and persistent cognitive symptoms. This study will also evaluate the preliminary magnitude and direction of symptom change on measures of objective cognitive functioning, psychiatric symptomatology, psychosocial functioning, and quality of life. The investigators hypothesize that CCT will improve objective cognitive functioning, psychiatric outcomes, psychosocial functioning, and quality of life in Veterans with recent MDD-related cognitive functioning deficits. Participants who agree to participate in the study will: 1. Take part in an assessment of their cognition, symptoms, and functioning, which will take approximately 2 hours. The assessment will include an interview about their medical, psychiatric, and cognitive history. It will also include questionnaires about their symptoms and daily functioning as well as neuropsychological tests, which are paper-pencil tests that evaluate aspects of cognition such as memory, attention, and problem-solving skills. 2. Be randomly assigned (like the flip of a coin) to receive Goal-Focused Supportive Contact or Compensatory Cognitive Training. Both treatments will involve weekly groups with a mental health provider for approximately 2 hours per week for 8 weeks. Goal-Focused Treatment includes setting and achieving short-term and long-term goals for improving cognition and functioning. Compensatory Cognitive Training includes training in strategies to improve cognition and manage stress. 3. Complete a follow-up assessment of cognition, symptoms, and functioning 8 weeks after they begin treatment, as well as a brief interview about their experience in the group. These assessment sessions will take approximately 2 hours.