Crossed anomic aphasia: mild naming deficits following right brain damage in a dextral patient.
A detailed case study is reported of crossed aphasia (CA) in a dextral patient, bearing upon such controversial issues as intrahemispheric localisation of language function and hemispheric reversal of nonverbal function. DA, a man aged 37, developed a mild naming problem due to right temporal lobe haematoma. Apart from a mild acquired stutter, his continuous speech was fluent and had a normal proportion of open to closed class lexical items. His naming deficit appears to originate in the 'blocking' or 'disconnection' of the phonological lexicon: he could usually give a functional definition of un-named items and retrieve them with the help of a phonemic cue. Lexical retrieval appears his only language deficit, as he had no comprehension or phonological discrimination deficits. DA showed no visuo-spatial or auditory-nonverbal deficits, suggesting the complete reversal of hemispheric specialisation.
Hadar
U
U
Psychology Department, Tel Aviv University, Ramat Aviv.
Ticehurst
S
S
Wade
J P
JP
D000328:Adult; D000849:Anomia / Q000175:diagnosis / Q000503:physiopathology* / Q000523:psychology; D001037:Aphasia / Q000175:diagnosis / Q000503:physiopathology* / Q000523:psychology; D001288:Attention / Q000502:physiology; D001925:Brain Damage, Chronic / Q000175:diagnosis / Q000503:physiopathology* / Q000523:psychology; D001931:Brain Mapping; D002543:Cerebral Hemorrhage / Q000503:physiopathology / Q000601:surgery; D004292:Dominance, Cerebral / Q000502:physiology*; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000503:physiopathology / Q000601:surgery; D008297:Male; D009483:Neuropsychological Tests; D010153:Paired-Associate Learning / Q000502:physiology; D011183:Postoperative Complications / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology; D011597:Psychomotor Performance / Q000502:physiology; D014706:Verbal Learning / Q000502:physiology