Active clinical trials for "Cognitive Dysfunction"

DELPhI software developed for the analysis of EEG recordings in response to magnetic stimulation in relation to clinical data.

Cognitive impairment is one of the symptoms of Multiple Sclerosis (MS), and it may occur during the first years of the disease. It usually affects attention, information processing speed and short term memory. To date, the mechanisms of this specific symptom remain unclear (local or global inflammation, neurodegenerative processes). Magnetic Resonance Imaging (MRI) can be useful to understand the pathophysiology of cognitive impairment in MS. The investigators will combine conventional and non conventional MRI sequences to determine the respective role of white matter and grey matter injury and the cortical reorganization of neuronal networks.

The purpose of this study is to investigate if there is an association between the depth of anaesthesia and the presence of cognitive deterioration after surgery.

The general purpose of the present pathophysiological study is to investigate the relation between cognitive impairment observed after an acute coronary syndrome and the presence of cerebral anatomo-functional abnormalities. This study will improve the investigators' understanding of the disease and will help in early diagnosis and prevention of vascular dementia in this population.

This is a three year fMRI study conducted at the University of Wisconsin (UW) Hospital and the William. S. Middleton VA Hospital. This study is guided by the hypothesis that reduced fMRI activity and connectivity cortical midline structures (i.e., medial frontal and ventral posterior cingulate cortex) are physiologic abnormalities that relate strongly to the compromised insight into cognitive deficits, or anosognosia, shown by a subset of individuals with amnestic MCI (aMCI) and AD. Further, the investigators hypothesize that these regional changes in fMRI activity are predictive of faster progression from aMCI to AD.

The purpose of this study is to: 1) evaluate the reliability and validity of EMS screening for depression and cognitive impairment and 2) to develop a pilot ED intervention program to address the needs of older adults found to be at risk for depression and cognitive impairment.

The purpose of this study was to analysis the incidence of ear symptoms, cognitive function decline and emotional disorders in Chinese people who were infected with COVID-19, exploring the impact of COVID-19 on the auditory system, cognitive function and emotional function, and analyzing the changes in functional connectivity of brain network after COVID-19 infection.

Brucellosis is a common zoonotic infection in many parts of the world including the Mediterranean and Middle Eastern countries. Neurobrucellosis may develop at any stage of disease and may have widely variable manifestations, including encephalitis, meningoencephalitis, radiculitis, myelitis, peripheral and cranial neuropathies, subarachnoid hemorrhage, and psychiatric manifestations.

The investigators conducted a prospective observational pilot study to explore the incidence of peri-operative covert strokes (detected by brain MRI) and the potential impact on delirium and cognitive decline in post-operative cardiac surgery patients at the Hamilton General Hospital. This pilot study assessed the feasibility of a larger prospective international cohort study exploring this objective.

Approximately 50% of patients with hepatitis C have complaints of fatigue and cognitive deficits even before the development of significant hepatic impairment.