View clinical trials related to Cognition Disorders.
Filter by:Electrical activity in the brain known as "gamma" brainwaves help connect and process information throughout the brain. These gamma waves are diminished in Alzheimer's disease. New research in Alzheimer's disease mouse models shows that exposure to light flickering at the rate of 40 flashes per second or 40Hz increased gamma brainwaves and led to clearing of beta amyloid plaques in the brain, a key abnormality in Alzheimer's disease. This project will test the ability of a novel iPad App (AlzLife https://www.alz.life/) that delivers light therapy at 40 Hz combined with cognitive therapy to improve cognition, function, and quality of life in Alzheimer's disease.
Despite sustained inhibition of viral replication in plasma undergoing treatment, nearly 30% of HIV-infected patients have HIV-related cognitive impairment. To date, no therapeutic strategy has demonstrated clinical efficacy. The initial hypothesis is to use the non-medical techniques of cognitive remediation commonly practiced in the treatment of Alzheimer's disease to allow improvement or even regression of cognitive disorders in HIV-infected people (PHAs) who are virologically tested on antiretroviral combination therapy (ART). Some recent pilot studies using individual computer-based cognitive remediation strategies show improved test performance. However, none have studied the impact of this strategy on PPHIV with cognitive impairment. A single-center pilot study evaluating the efficacy of an individual cognitive remediation program for 6 months on the improvement of cognitive impairment in patients with stable plasma HIV viral load that is undetectable under stable antiretroviral combination (cART) cognitive disorders related to HIV infection. The primary objective is to demonstrate improvement through a 6-month individual cognitive remediation program on cognitive impairment (1 standard deviation variations on 2 M6 neuropsychological tests) in controlled HIV-positive individuals under cART with cognitive disorders related to HIV. Methodology: Monocentric, prospective, pilot study of 40 patients performed in an open period of 25 months. The inclusion period is 13 months and the participation duration per patient is 12 months. After an inclusion visit, patients start 15 days of individual cognitive remediation sessions. The cognitive remediation will be led by a psychologist specialized in neuropsychology, trained and experienced in this method. Cognitive remediation will be performed at a rate of 1 to 2 sessions per week. Each patient will be assessed initially (M0) at 6 months (M6) and 12 months (M12: 6 months after stopping cognitive remediation) with a battery of standardized neuropsychological (NP) tests performed by a neuropsychologist. Primary endpoint: Improved cognitive impairment after 6 months of cognitive remediation, with each patient being their own control, defined by improvement on at least 2 tests of 1 standard deviation minimum.
The overall objective of the proposal is to examine the epidemiology of the newly reported "motoric cognitive risk" (MCR) syndrome, which is a pre-dementia syndrome combining subjective cognitive complaint (i.e.; memory complaint) with objective slow gait speed, in the Quebec elderly population. Cognition and locomotion are two human abilities controlled by the brain. Their decline is highly prevalent with physiological and pathological aging, and is greater than the simple sum of their respective prevalence, suggesting a complex age-related interplay between cognition and locomotion. Both declines in cognition and locomotion are associated, furthermore the temporal nature of their association has been unclear for a long time. Recently, a systematic review and meta-analysis has provided evidence that poor gait performance predicts dementia and, in particular, has demonstrated that MCR syndrome is a pre-dementia syndrome, suggesting that low gait performance is the first symptom of dementia. The uniqueness of MCR syndrome is that it does not rely on a complex evaluation or laboratory investigations. Indeed, this syndrome combined subjective cognitive complaint and objective slow gait speed, and is easy to apply in population-based settings. Prevalence and incidence of MCR syndrome, as well as its association with incidence of cognitive decline and impairment, have never been reported in Canada. Nutrition as a determinant of successful aging: The Quebec longitudinal Study (the NuAge study) is a Quebec population-based observational cohort study performed in healthy older community-dwellers adults which provides a unique opportunity to: 1) obtain reliable estimates of MCR syndrome prevalence and incidence, 2) determine the distribution of clinical characteristics associated with MCR syndrome, 3) examine the association of MCR syndrome with cognitive decline and incidence of cognitive impairment in the Quebec elderly population.
The purpose of the study is to examine the effects of cognitive training on emotion regulation, impulse control, and aggression in people with schizophrenia. The study compares a combination of computerized cognitive remediation and social cognition training (CRT+SCT) to cognitive remediation alone (CRT). Study outcomes include multiple measures of aggression, emotion regulation, impulse control, cognition, and symptoms.
Cognitive impairment is a core symptom of schizophrenia and is in a large part responsible for the poor psychosocial outcome of the disorder. The use of non-invasive brain stimulation techniques as a therapeutic option is just commencing for neuropsychiatric patients. Concerning healthy subjects the investigators have previously shown that anodal tDCS to the right dorsolateral prefrontal cortex (DLPFC) parallel to working memory training can sustainingly enhance performance in a spatial n-back task. Additionally, first translational experiments regarding the use of anodal tDCS to improve working memory (WM) in patients with schizophrenia rendered promising results. On those grounds, the investigators now test the hypothesis that anodal tDCS to the right DLPFC can augment working memory training in patients with schizophrenia.
This is an expanded access program (EAP) for eligible participants. This program is designed to provide access to SUVN-502 for the treatment of Alzheimer's Disease. Investigator as well as the subject/caregiver must decide whether the potential benefit outweighs the risk of receiving an investigational therapy based on the patient's medical history and program eligibility criteria. Subjects will not be evaluated for efficacy and safety during the expanded access.
We aim to make clear the impact with the mechanisms of variant pathological injuries on the outcomes of CSVD, to find independent imaging markers and establish prediction model of it.
This study is a sub-study to the large pragmatic Target Temperature Management 2 Trial (TTM2-trial, ClinicalTrials.gov Identifier: NCT02908308), assessing effectiveness of controlled hypothermia after out-of-hospital cardiac arrest (OHCA). This study is designed to provide detailed information on cognition after OHCA and its relationship to associated factors as emotional function, fatigue, and sleep. A secondary aim is to utilize this information to validate a neurocognitive screening battery used 6 months after OHCA in the TTM2-trial. Approximately 7 and 24 months after OHCA, survivors at selected TTM2 study sites will perform a standardized neuropsychological assessment including performance-based tests of cognition and questionnaires of behavioral and emotional function, fatigue, and insomnia. At 1:1 ratio, a control group of myocardial infarction (MI) patients but no occurrence of cardiac arrest will be recruited and perform the same test battery. Group differences at 7 and 24 months will be analyzed per cognitive domain (verbal, visual/constructive, short-term working memory, episodic memory, processing speed, executive functions). Results of the OHCA survivors on the TTM2 neurocognitive screening battery will be compared with neuropsychological test results at 7 months time.
The purpose of this international, multi-centre observational study is to describe perioperative cognitive changes (pre-existing neurocognitive disorder [NCD], postoperative delirium [POD] and Postoperative Cognitive Dysfunction [POCD]) up to five years after elective surgery in a mixed cohort. Measurements and definitions of cognitive outcomes will be based on current consensus and used for further harmonization in future clinical studies on perioperative cognitive trajectories. This is a feasibility approach to identify an effective screening procedure and estimate loss to follow up rates for the planning of future intervention studies. Data from this trial may also serve to facilitate and implement time effective cognitive screening and risk stratification concerning postoperative cognitive decline in the anaesthesiological preoperative assessment.
This study seeks to evaluate the efficacy and safety of NA-83 in subjects with mild cognitive impairment due to Alzheimer's Disease