SEVERE RETROGRADE-AMNESIA

A case of severe retrograde and less severe anterograde amnesia with i nitial multimodal agnosia is described as an outcome of traumatic brai n damage. Anatomical and metabolic studies document right frontal and left occipital lesions with sparing of medial temporal cortex. The cas e demonstrates the common basis of memory and perception, and is inter preted as a result of disruption to a semantic phase in the process of object formation.