Active clinical trials for "Cognition Disorders"

Single center threeway double blind cross over trial investigating the pharmacological responsivity in patients with VCI using a challenge aimed at the monoaminergic and cholinergic neuronal systems

This research aim to explore relationships between the presence of amyloid burden and cognitive performance, and its modulation by educational level. For this purpose we will combine Positron emission tomography (PET) imaging and neuropsychological assessment acquired on 3 groups of subjects, from two population-based cohorts "3C" and "AMIMage" The first group includes cognitively intact participants who will serve as controls, the second group, subjects with mild cognitive impairments without memory complaint and the third, subjects with both mild cognitive impairments and memory complaint.

The objectives of this study are to: (1) determine the effects of combinatorial training (i.e. combinatory of aerobic exercise with cognitive training and guiding training) vs. the sequential training (i.e. a combination of aerobatic exercise with cognitive training) on cognitive function, physical function, and daily function/participation and psychological function in persons with cognitive impairments post Traumatic brain injury (TBI); (2) determine the long-term effects of these two types of interventions on these outcome measures.

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.

Postoperative cognitive impairment is one of the most common complications in elderly surgical patients. Laser laryngeal surgery is a short procedure, but characterized by high risk of disastrous airway fire. So the recommended oxygen concentration is less than 30%. For elderly patients, because of preoperatively declined cardiovascular and lung function and cognitive function, there is a potential that intraoperative low oxygen concentration may lead to drop of arterial oxygen tension, decrease of brain oxygenation, and exacerbate brain function impairment. Intravenous anesthesia and inhalation anesthesia is two commonly used technique for general anesthesia. Consequently, we carry out this study to identify whether different classes of anesthetics can affect postoperative cognitive function in old patient undergoing laser laryngeal surgery.

Many hospitalizations or emergency room visits are due to problems of iatrogenic medication, especially in elderly patients who are very often polymedicated. Moreover, they are more at risk because of fragility. This has an important socio-economic impact. It therefore seems important to act upstream of these adverse events and a review of the drugs available in the homes of elderly patients seems a good starting point.

Background: - Developmental dyscalculia is a learning disability in which individuals have difficulty learning or comprehending mathematics or other number concepts (such as keeping score during games, measuring time, or estimating distance). Developmental dyscalculia affects certain parts of the brain that are required for processing numbers. Research has shown that a form of brain stimulation called transcranial direct current stimulation (tDCS), applied when healthy individuals are being trained to carry out tasks with numbers, improved the ability to process numbers and solve math problems. More research is needed about whether tDCS can improve number processing in people with developmental dyscalculia. Objectives: - To examine whether the effects of transcranial direct current stimulation can help individuals with developmental dyscalculia perform mathematical calculations. Eligibility: - Individuals between 18 and 50 years of age who have been diagnosed with developmental dyscalculia, or are healthy volunteers without dyscalculia. Design: Participants will have a screening visit and seven study visits. The screening visit and six of the study visits will take place consecutively over the course of 6 days, and the final visit will take place 3 months after the initial participation. Participants will be screened with a medical history, physical and neurological examination, and a brief examination to test for dyscalculia and determine the participant's dominant hand. Participants will be randomly assigned to one of two groups for the study. One group will receive tDCS during training to perform a task with numbers, and the other group will receive the same training with sham stimulation. Participants will not know which group they are in. During the study visits, participants will be trained on number tasks on 6 consecutive days. Before the tDCS or sham stimulation is applied at the beginning of the experiment and at the end of each training day, participants will perform other tasks with numbers. Participants will be evaluated based on the accuracy and speed with which they respond to the questions. At the followup visit, participants will perform the same number tasks they completed during the study visits. No tDCS will be performed at this visit.

This study will determine the usability of a website for people with schizophrenia versus other websites designed for the same purpose.

This is a single-center, blinded, placebo-controlled pilot RCT evaluating corticosteroids for the treatment of Community Acquired Pneumonia (CAP) that will enroll 100 adults hospitalized with community-acquired pneumonia. The primary goal is to assess the feasibility of proposed trial procedures for use in a subsequent phase III trial powered on 6-month cognitive outcome (MOCA-Blind score). Key outcomes are six-month cognitive and functional status, duration and severity of symptoms, and mortality.

According to 2011 HAS recommendations, early detection of Alzheimer disease is the major objective in order to allow an earlier care and support. These recommendations strengthen general practitioner role, who plays a key role in the identification of cognitively impaired patients. HAS recommendations are the use of MMSE like test (Mini Mental State Examination) at general practitioner office. A self-screening test, without medical presence, would allow a self-administered cognitive assessment by the patient. A review of the literature about self-administered cognitive tests has been realized. The Self-Administered Gerocognitive Examination (SAGE) has been chosen. It is a brief, valid and reliable cognitive assessment tool, rated on 22 points, which allows an early detection of cognitive impairment, with a sensitivity close to the MMSE test. Nevertheless, SAGE has never been tested at home without medical supervision. In this study, the investigators will determine if SAGE scores at home correlates with MMSE scores at general practitioner office. Patients with inclusion criteria will be recruited during the general practitioner consultation and will have a clinical assessment included MMSE and clinical data collection. Then, SAGE will be given to the patient in order to be completed at home without medical supervision and send to the general practitioner.