View clinical trials related to Cognition.
Filter by:Ketone bodies are produced by the liver during periods of food scarcity or severe carbohydrate restriction. Blood ketones are an alternative fuel source used by the brain, heart, and skeletal muscle during periods of fasting. Further, ketones bodies act as a signalling molecule that have pleiotropic effects that upregulate cellular stress-resistance pathways throughout the body. Oral supplements containing exogenous ketones have recently become available and represent a novel tool for increasing plasma ketone bodies without the need for dietary restriction. Early evidence suggests that oral ketone supplements may enhance cerebral blood flow and improve cognition. However, the dose-dependent effects of a single ketone supplement on cerebral blood flow and cognition in young adults is currently unknown. The purpose of this study is to characterize the effects of ingesting a high versus low dose of an oral ketone monoester on cerebral blood flow, circulating blood markers, and cognition in young adults. As an exploratory aim, this study will investigate how oxygen uptake kinetics during submaximal exercise are impacted 2 hours after ingestion of a ketone supplement. Recent findings indicate that ketone supplementation may impair exercise performance due to the physiological stress (i.e., pH disturbances) imposed by an acute ketone dose. Delaying exercise onset by 2 hours after ingestion of a ketone supplement may enhance oxygen kinetics in a dose-dependent manner.
The purpose of this study is to evaluate the changes in energy expenditure, fat oxidation, reaction time, and perceptual indicators of energy and focus after acute ingestion of a caffeine-based energy drink. Approximately 60 healthy adults aged 18-50 will be recruited for a randomized, double-blind, placebo-controlled study. They will undergo baseline measurements for energy expenditure, fat and carbohydrate oxidation, reaction time, cognition, and perceptual indicators of energy, focus, and concentration. After 28 days, these measurements will be taken again, comparing the effects of a caffeine-based energy drink versus a placebo.
People who report subjective memory complaints have a greater risk of developing dementia. Memory issues may be an early warning sign of dysfunctional cerebral glucose metabolism and cerebral blood flow. Interventions that can restore cerebral metabolism and enhance cerebral blood flow may protect against conversion to dementia. Exogenous ketone supplements have been shown rapidly improves brain network function in young adults. Further, infusion studies demonstrate that ketone bodies enhance cerebral blood flow in cognitively normal adults. Whether acute ketone monoester supplementation can improve brain function in adults with subjective memory complaints is currently unknown. This study will investigate the effects of a single ketone monoester dose on resting-state functional connectivity in the default mode network and resting cerebral blood flow in adults with subjective memory complaints.
This is a prospective, placebo controlled study, examining the effects of dietary supplement's effects on cognition and confirming safety.
In a randomised, controlled cross-over manner, this trial aims to determine how short-term daily supplementation with a milk fat globule membrane-enriched ingredient impacts on cardiometabolic health and cognitive outcomes.
Frailty is a common geriatric condition with significantly increased vulnerability to stress and susceptibility of negative health-related outcomes. Sacropenia and impaired cognitive function are two major contributors to frailty. This study aims to evaluate the effects of the combined use of exergaming and resistance training in improving the frailty of nursing home residents.
The objective of this study is to assess the effectiveness of two digital programs for providing mental stimulation, improving cognition, and inducing changes in brain structure and function.
Dementia is a leading cause of death in the United States among aging adults. Brain insulin resistance has emerged as a pathologic factor affecting memory, executive function as well as systemic glucose control. Regular aerobic exercise decreases Alzheimer's Disease (AD) risk, in part, through changes in brain structure and function. However, there is limited data available on how exercise impacts brain insulin resistance in aging. This study will test the effect of acute exercise on brain insulin sensitivity in middle-aged to older adults. The study will also examine cognition and cardiometabolic health in relation to brain insulin sensitivity.
The goal of this multicenter prospective longitudinal study is to study the long-term impact of multimodal treatment (chemotherapy, radiotherapy and surgery) in adult brain and base of skull tumors on neurocognitive functioning. All included patients will complete a self-report inventory (subjective cognitive functioning, QoL, confounders), a cognitive test battery, an advanced MR at multiple timepoints. Moreover, toxicity will be scored according to the CTCAEv5.0 in these patients over time.
The goal of this clinical trial is to effectively implement virtually-delivered interventions in mental health institutions nationwide to improve the cognitive health of individuals living with schizophrenia. The main objectives are: - To determine the clinical effectiveness of two virtual cognitive health interventions (i.e., Action-Based Cognitive Remediation or MetaCognitive Training). - To evaluate our implementation strategy involving the virtual delivery of cognitive health interventions combined with a digital learning platform to train mental health practitioners. Participants will be assessed for the severity of symptoms, cognitive performance, and overall functioning before and after receiving the intervention. Qualitative interviews will also be conducted with participants and therapists to evaluate the implementation strategies.