What is simultanagnosia and where is the lesion underlying it?
Simultanagnosia is a disorder of visual perception and attention characterized by the inability to interpret complex visual arrays despite preserved recognition of single objects.
Simultanagnosia occurs predominantly in patients with high occipitoparietal lobe disease such as bilateral infarcts in the posterior watershed region, venous infarcts due to sagittal sinus thrombosis, and in some patients with AD.
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