Verbal and nonverbal memory impairment in aphasia.

Repetition is frequently impaired in aphasia, most strikingly in conduction aphasia. The still not fully answered question is whether this relates to a linguistic deficit or to a general impairment of working memory extending to other modalities as well. To contribute to this problem, we assessed 49 aphasic and 50 non-aphasic stroke patients using an aphasia test plus three memory tests in forward and backward fashion, taxing verbal, numerical, spatial, and facial retention.