Poststroke acute dysexecutive syndrome, a disorder resulting from minor stroke due to disruption of network dynamics.

ABSTRACT: Stroke patients with small central nervous system infarcts often demonstrate an acute dysexecutive syndrome characterized by difficulty with attention, concentration, and processing speed, independent of lesion size or location. We use magnetoencephalography (MEG) to show that disruption of network dynamics may be responsible. Nine patients with recent minor strokes and eight age-similar controls underwent cognitive screening using the Montreal cognitive assessment (MoCA) and MEG to evaluate differences in cerebral activation patterns. During MEG, subjects participated in a visual picture-word matching task. Task complexity was increased as testing progressed. Cluster-based permutation tests determined differences in activation patterns within the visual cortex, fusiform gyrus, and lateral

SUBMITTER: Marsh EB 

PROVIDER: S-EPMC7776947 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature