Four of 688 consecutive patients with right hemisphere ischemic stroke show
ed acute associated exploratory-motor and perceptual-sensory neglect withou
t hemiparesis (AMSNWH). All cases had anterior cortical and posterior corti
cal infarctions in which motor strip and corticospinal pathways were spared
. Acute AMSNWH is highly suggestive of embolic infarction in the anterior a
nd posterior pial artery territories.