Event-Related Desynchronization/Synchronization of Electrical Brain Activity during Modified Odd-Ball Tasks in Patients with Coronary Artery Disease and Mild Cognitive Impairment
| Autor: | O. L. Barbarash, I. V. Tarasova, I. N. Kukhareva, Vol'f Nv, R. M. Akbirov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test Physiology business.industry 05 social sciences Attentional control Cognition Electroencephalography Neurophysiology medicine.disease 050105 experimental psychology Coronary artery disease 03 medical and health sciences 0302 clinical medicine Rhythm Physiology (medical) Internal medicine medicine Cardiology 0501 psychology and cognitive sciences In patient Cognitive impairment business 030217 neurology & neurosurgery |
| Zdroj: | Human Physiology. 46:58-65 |
| ISSN: | 1608-3164 0362-1197 |
| DOI: | 10.1134/s0362119719060136 |
| Popis: | A great number of studies have been performed recently for the identification of reliable markers for effective and early detection of cognitive disorders. The neurophysiological basis of attention disorders in patients with coronary artery disease and cognitive impairment can be studied using a promising method of EEG rhythm desynchronization/synchronization. We analyzed the event-related desynchronization/synchronization of θ- and α-rhythms during a modified odd-ball test in patients with coronary artery disease (CAD) and with and without mild cognitive impairment (MCI). We found that patients with MCI had a reduced theta rhythm response during presentation of the target stimuli. Changes in the alpha desynchronization/synchronization were common for all CAD patients and apparently reflected selective attention processes. We assume that cognitive deficits in CAD patients are primarily accompanied by disorders in top-down attention control in the frontal sources, whereas the event-related α-activity is affected to a lesser extent and is not a valid marker of vascular MCI. |
| Databáze: | OpenAIRE |
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