View clinical trials related to Cognitive Function.
Filter by:Anticholinergic medication is used to treat overactive bladder (OAB). A known side effect of this medication is cognitive dysfunction. OAB is more prevalent in the elderly population - a group that also has a higher baseline risk of cognitive dysfunction. Our objective is to evaluate the effect of an anticholinergic medication on cognitive function in elderly women. Subjects will be randomized to:1) trospium chloride or 2) placebo. There are three aims: 1) To evaluate changes in cognitive function in elderly women taking trospium versus placebo, using validated cognitive assessment tests. 2) To develop a useful battery of cognitive screening tests for monitoring the cognitive safety of OAB management. 3) To understand how the timing of cognitive changes relates to the timing of improvement in OAB symptoms. The investigators will recruit 60 women aged ≥ 50 with the diagnosis of OAB. Cognitive assessments will be performed at baseline and Week 1 and 4 after drug initiation using paper-based validated questionnaires. OAB improvement will be assessed with validated questionnaires.
The purpose of this study is to evaluate the efficacy and the possible mechanisms underlying music-based multitask training (i.e., Jaques-Dalcroze eurhythmics) in older people, compared to multicomponent exercise training. This study is designed as a 12-month, prospective, single-centre, single-blind, 2-arm, parallel group, randomized controlled trial in which 140 community-dwelling older adults at high risk of falls are randomly assigned to receive either a music-based multitask training intervention (i.e., Jaques-Dalcroze eurhythmics) or a multicomponent exercise training intervention, for 12 months. A 12-month follow-up is planned with outcome measures assessed at three time points: baseline (before intervention initiation), 6-month (intervention mid-point), and 12-month (intervention termination). Outcomes of interest include physical and cognitive performances, and falls. In addition, the investigators specifically address brain circuits in an exploratory sub-study. Volunteer trial participants from both study arms are invited to undergo functional magnetic resonance imaging (fMRI) at baseline and 12-month.
The investigators performed a 12-week, randomized, double-blind, placebo-controlled human trial to evaluate the efficacy and safety of Eriobotyra Japonica Lindley Extract on improvement of Cognitive Function. The investigators measured improvement of Cognitive Function parameters , including K-MMSE, Ability to perform working memory tasks, CNT and BCRS, and monitored their blood pressure.
The investigators performed a 12-week, randomized, double-blind, placebo-controlled human trial to evaluate the efficacy and safety of Eriobotyra Japonica Lindley Extract on improvement of Memory Function. The investigators measured decrement of improvement of Memory Function, including K-MMSE, Rey-Kim Memory Test, BCRS, and PRMQ, and monitored their blood pressure.
Magnetic resonance imaging (MRI) is a premier modality to investigate structures and functions of human brain. In studies of children and adolescents, noninvasiveness of MRI makes it especially applicable. Developmental trajectory of gray matter volume and cortical thickness has been well studied in western countries. However, significant variability of brain structure has been reported between Chinese and Caucasian, and the variation may also exist in developmental trajectory of the brain. However, the maturation processes of neural fiber tracts in white matter are less understood. Diffusion tensor imaging (DTI), which has been frequently used to investigate the integrity of fibertracts in the literature, is limited in dealing with crossing fibers. Diffusion spectrum imaging (DSI) is a newly developed technique to improve the resolution of crossing fibers, and it is more suitable for detailed tractography assessment. In addition to establishing the template of brain structure (T1 and T2) and structural connectivity of our child, adolescent, and young adult population, the study has the following three aims. 1. To describe gender effect and developmental change of brain volume of different cortical and subcortical regions, thickness of cortex brain, and structural connectivity (e.g., frono-striatal, fronto-pareital, fronto-temporal and fronto-cerebeller tracts and superior longitudinal fasciculus II) across childhood through adolescent to adulthood; 2. To examine the gender effects and developmental change of attention, executive function and visual memory from childhood to adulthood and whether gender moderates these developmental changes; and 3. To correlate the structural connectivity and brain size and neuropsychological function within the same subjects.
Obesity is associated with physical disability through both direct pathways (e.g., lower extremity pain, insufficient muscle strength) and indirect pathways (obesity-related comorbidities and inflammation). Furthermore, diabetes, a major obesity-related health condition, is associated with increased risk of disability and accelerated declines in physical and cognitive function. The investigators preliminary data suggest that intentional weight loss improves physical function, and there is strong circumstantial evidence that it would also benefit cognitive function. To evaluate the role of intentional weight loss on physical and cognitive function, the investigators propose an ancillary study to the on-going Look AHEAD (Action for Health in Diabetes) trial. Look AHEAD is a multi-center, randomized clinical trial to examine the effects of a 4-year lifestyle intervention designed to achieve and maintain weight loss through decreased caloric intake and exercise in overweight or obese men and women aged 45-74 years with type 2 diabetes. The investigators propose to add validated and well-established measures of physical and cognitive performance to the year 8 follow-up visit - during the trial's weight maintenance phase - in ~1000 participants at 4 of the 16 Look AHEAD field sites (Colorado, Memphis, Pennington and Pittsburgh). The specific aims of this ancillary study are: 1) To determine the long-term effects of a lifestyle intervention designed to achieve and maintain weight loss on physical function; and 2) To determine the long-term effects of a lifestyle intervention designed to achieve and maintain weight loss on cognitive function. In addition, the investigators hypothesize that in the intervention group, larger initial weight loss, better weight loss maintenance, and higher physical activity will be associated with better physical and cognitive function. The investigators also hypothesize that in the control group weight loss will be associated with worse physical and cognitive function than in those who are weight stable or who have gained weight. The number of obese older adults is rising rapidly and there are few data to guide an evidence-based clinical response to their management. The results of this study will provide the first direct evidence of the role of long-term intentional weight loss on the maintenance of physical and cognitive function in older obese adults with diabetes. Since this study is being done as an ancillary study to an on-going trial it can be done in a timely and cost-efficient manner.
The purpose of this study is to determine the effects of 2 weeks caffeine abstinence as compared to 2 weeks caffeine maintenance (300mg per day)on cognition and mood. Cerebral blood flow effects will also be assessed in a subset of participants. The role of caffeine abstinence/maintenance in the acute effects of caffeine will also be explored.
The purpose of this study is to assess the effect of eating breakfast in combination with exercise on fat usage, appetite and brain performance later in the day.
Dietary intake of omega-3 polyunsaturated fatty acids (n-3 PUFAs) is inversely associated with cognitive decline and dementia (e.g. Kalmijn et al. 2004, Heude et al. 2003, Morris et al. 2005, Dullemeijer et al. 2009). Recently, the effects of supplemental docosahexaenoic acid (DHA) on behavioural outcomes in older adults has been explored, however two trials addressing this issue have published conflicting results regarding the efficacy of DHA supplementation, with one reporting a benefit of treatment on cognitive performance (Yurko-Mauro et al. 2010), while the other did not (Dangour et al. 2010). One area of research that has yet to be explored in this cohort is the effects of n-3 PUFAs on brain function in physiological terms. It is also possible that n-3 PUFAs, in combination with other compounds, may be more beneficial than treatment with n-3 PUFAs in isolation. The current study will explore several separate hypotheses within the same cohort. These are that Efalex Active 50+ may have a beneficial effect on: - Cognitive performance - Mental fatigue in response to cognitively demanding tasks - Self-reported mood/well-being - Task-related cerebral blood flow response The proposed study therefore has two aims; the primary aim is to evaluate the cognitive and mood/well-being effects of Efalex Active 50+, a dietary supplement containing a number of potentially cognition enhancing components including DHA, phosphatidylserine, vitamin B12, folic acid and Ginkgo biloba, compared with placebo in a sample of older adults aged 50-70 years (Cognitive Study). The second is to evaluate the cerebral haemodynamic effects of the same treatment formulation in a sample drawn from the same population, with the addition of a third DHA-only arm (Hemodynamics Study). The intervention period will be 6 months.
This is a randomized controlled trial to test the impact of a flavonol containing food product and aerobic exercise on cognitive function and brain structure.