View clinical trials related to Cognitive Change.
Filter by:The goal of this clinical trial is to learn if increasing adherence to a Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet pattern improves thinking ability and memory compared to a healthy control diet in persons with Multiple Sclerosis (MS). The main question it aims to answer is: Does the MIND diet improve cognitive performance relative to a control diet in persons with MS? Participants will: Consume one meal that follows the MIND diet or a control meal every day for 3 months, complete online surveys and cognitive testing before and after, and keep a record of the food they eat during the study.
The goal of this clinical trial is to learn if increasing adherence to a Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet pattern improves brain and heart health relative to a healthy control diet in middle-aged adults.The main questions it aims to answer are: Does the MIND diet improve cognitive performance and heart health relative to a control diet? Researchers will compare the MIND diet group to a control (a healthy diet that does not match the MIND diet) to see if the MIND provides more benefit to health. Participants will: Consume one meal that follows the MIND diet or a control meal every day for 3 months Visit the lab before and after the 3 months of meals for tests. Keep a record of the food they eat during the study.
Dementia is a significant public health problem, affecting 47 million people worldwide in 2015, according to World Health Organization data. It is expected to increase to 75 million in 2030 and reach 132 million in 2050. Royal jelly is used as a supplement in treating of cancer, hypertension, diabetes and neurodegenerative diseases due to its antioxidant, anti-inflammatory, neuroprotective, cardioprotective, anti-proliferative and anti-fatigue properties. There are preclinical studies on the curative and protective effects of royal jelly on cognitive functions. This randomized controlled, double-blind clinical trial is aimed to study the effect of oral use of lyophilized royal jelly for 4 weeks on immune system cytokine levels and cognitive functions in individuals aged 50-80 years without any neurological disease diagnosis. Primary outcome measures are the Mini-Mental State Examination, the Alzheimer's Disease Assessment Scale-Cognitive Subscale, and the Geriatric Depression Scale. Secondary outcome measures are serum interleukin-1β, interleukin-6, interleukin-10, tumor necrosis factor-α and transforming growth factor-β levels.
The proposed study will enroll 1600 participants to examine the effectiveness of cognitive training. Participants will be randomized into different experimental groups and can expect to participate for up to 15 hours of research over 4 to 8 weeks.
This project comprises an initial crossover placebo-controlled neurophysiological study to ascertain the effect of acute ketone ester ingestion on motor cortex plasticity, followed by a second 2-week intervention study aimed to compare the effect of a ketogenic diet versus ketone ester supplementation on motor cortex plasticity, resting brain function and structure, and metabolic and neuroendocrine responses.
To examine the acute changes in cardiometabolic and neurocognitive outcomes in response to exercise combined with ketone ester supplement in overweight/obese adults.
The goal of this clinical trial is to test whether the intervention of probiotics supplement can improve symptoms of long covid syndrome. Participants will be given probiotics or placebo capsules for two month. Symptom questionnaires, cognitive function, eeg and fecal sample are recorded/collected before and after the supplement. Researchers will compare the probiotic group and the placebo to see if probiotic supplement really make differences.
The goal of this accelerated longitudinal observational cohort study is to advance our understanding of cognitive variability in children aged 7 to 10 at first measurement. The CODEC study aims to integrate experience sampling methods, longitudinal designs, deep phenotyping cohorts, and state-of-the-art statistical methodologies to investigate three core questions: 1. How does cognitive variability differ between individuals? 2. What are the neural, psychological, and environmental mechanisms that underlie cognitive variability? 3. What are the long-term consequences and outcomes associated with differences in cognitive variability?
The goal of clinical trial is to learn about how blood pressure fluctuations affect cognitive performance (thinking abilities) and brain blood flow in persons with Parkinson's disease with and without orthostatic hypotension (low blood pressure when standing). The main questions it aims to answer are: - Is there a certain level of blood pressure that correlates with change in cognitive performance while upright? - Is there a certain level of change in brain blood flow that correlates with change in cognitive performance when upright? - How does cognitive performance differ between persons with Parkinson's disease that have orthostatic hypotension and those without orthostatic hypotension? - How does cognitive performance differ between the supine (laying down) and upright positions? - How do blood pressure and brain blood predict changes in cognitive performance over two years? Participants in this study will undergo the following procedures: - Complete a screening visit with questionnaires, medical history, physical exam, and head-up tilt-table test. - Attend one baseline study visit, during which they will undergo a battery of computerized cognitive tests repeated twice: once while laying down and once while upright on a tilt table. Simultaneously, during the experiments we will measure blood pressure using a wrist-worn device and inflatable arm cuff and will measure brain blood flow using functional near-infrared spectroscopy (fNIRS), a non-invasive device that uses light sensors to detect changes in brain blood flow. - Attend one two-year follow-up visit, during which they will repeat a battery of computerized cognitive tests repeated twice: once while laying down and once while upright on a tilt table. During this visit, like before, we will measure blood pressure using a wrist-worn device and inflatable arm cuff and will measure brain blood flow using functional near-infrared spectroscopy (fNIRS). Researchers will compare participants with Parkinson's disease with and without orthostatic hypotension in the laying down and upright positions to see if there are changes in thinking abilities between these groups.
The current project is dedicated to creating a comprehensive cognitive and neural assessment platform and corresponding norms tailored specifically to the older adults in Macau.