title: Short-term and working memory impairments in aphasia.
abstract: The aim of the present study is to investigate short-term memory and working memory deficits in aphasics in relation to the severity of their language impairment. Fifty-eight aphasic patients participated in this study. Based on language assessment, an aphasia score was calculated for each patient. Memory was assessed in two modalities, verbal and spatial. Mean scores for all memory tasks were lower than normal. Aphasia score was significantly correlated with performance on all memory tasks. Correlation coefficients for short-term memory and working memory were approximately of the same magnitude. According to our findings, severity of aphasia is related with both verbal and spatial memory deficits. Moreover, while aphasia score correlated with lower scores in both short-term memory and working memory tasks, the lack of substantial difference between corresponding correlation coefficients suggests a possible primary deficit in information retention rather than impairment in working memory.
authors.affiliation: Department of Neurology, National and Kapodistrian University of Athens, Eginition Hospital, Athens, Greece.
authors.forename: Constantin
authors.initials: C
authors.lastname: Potagas
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Kasselimis
authors.forename: Ioannis
authors.initials: I
authors.lastname: Evdokimidis
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001037:Aphasia / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008570:Memory, Short-Term; D008875:Middle Aged; D009483:Neuropsychological Tests; D012660:Semantics; D013028:Space Perception; D014706:Verbal Learning