View clinical trials related to Cognition Disorder.
Filter by: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.
Background: - The amount of blood flowing in brain areas goes up when those areas are being used for activities, such as movement or seeing. Functional magnetic resonance imaging (fMRI) is a common way of measuring blood flow in the brain. Near infrared spectroscopy (NIRS) can also be used to study blood flow in the brain. However, NIRS has not been used as often as fMRI. Researchers want to compare fMRI and NIRS to see whether they give similar results. These studies will be used to look at people who have had a traumatic brain injury. Objectives: - To test how well NIRS measure changes in blood flow in the brain after a traumatic brain injury. Eligibility: - Individuals between 18 and 60 years of age who have had a traumatic brain injury. - Healthy volunteers at least 18 years of age. Design: - Participants will be screened with a physical exam and medical history. Researchers may ask to see brain images during from previous MRI scans. - Participants will have a NIRS scan of the brain. They will be asked to do certain tasks while inside the scanner. These tasks will involve responding to images that appear on a screen. - Treatment will not be provided as part of this study.
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.