Which area is involved for the memory deficit in posterior cerebral aery embolism?
Memory deficit is present only if dominant hemisphere is involved. The most common long-term sequelae of PCA strokes are visual and sensory deficits. Infarction of the medial temporal lobe, fornices, or medial thalamic nuclei may result in permanent anterograde amnesia. Lesions of the lingual gyrus in the inferior occipital lobe may produce disorders of color perception. Pure alexia may result from infarction of the dominant occipital coex. Prosopagnosia refers to an inability to recognize faces. Typically, this deficit results from bilateral lesions of the lingual and fusiform gyri. The major posterior cerebral aery (PCA) stroke syndromes (many of which occur concomitantly) include the following: Paramedian thalamic infarction Visual field loss Visual agnosia Balint syndrome Prosopagnosia Palinopsia, micropsia, and macropsia Disorders of reading Disorders of color vision Memory impairment Motor dysfunction
Pre frontal coex
Hippocarpal gyrus
Angular gyrus
Superior temporal gyrus