Right hemisphere contribution to lexical access in an aphasic with deep dyslexia.
Three hemifield tachistoscopic studies of a right-handed patient with acquired Broca's aphasia and deep dyslexia, but with intact visual fields, are presented to support the hypothesis of right hemisphere (RH) participation in deep dyslexic reading. A systematic comparison of this deep dyslexic with the disconnected RHs of two patients with complete cerebral commissurotomy disclosed a similar, but not identical, pattern of abilities. The results demonstrate partial reliance on the RH for accessing the meaning of single words, but not for phonological encoding in this patient.
Schweiger
A
A
Department of Psychology, UCLA 90024-1563.
Zaidel
E
E
Field
T
T
Dobkin
B
B
D000328:Adult; D000849:Anomia / Q000503:physiopathology; D001037:Aphasia / Q000503:physiopathology*; D001039:Aphasia, Broca / Q000503:physiopathology*; D002540:Cerebral Cortex / Q000503:physiopathology; D002544:Cerebral Infarction / Q000503:physiopathology; D003337:Corpus Callosum / Q000601:surgery; D004292:Dominance, Cerebral / Q000502:physiology*; D004411:Dyslexia, Acquired / Q000503:physiopathology*; D005260:Female; D006801:Humans; D011939:Mental Recall / Q000502:physiology; D009483:Neuropsychological Tests; D011183:Postoperative Complications / Q000503:physiopathology; D012660:Semantics; D014706:Verbal Learning / Q000502:physiology; D014796:Visual Perception / Q000502:physiology