Do dual-route models accurately predict reading and spelling performance in individuals with acquired alexia and agraphia?
Coltheart and co-workers [Castles, A., Bates, T. C., & Coltheart, M. (2006). John Marshall and the developmental dyslexias. Aphasiology, 20, 871-892; Coltheart, M., Rastle, K., Perry, C., Langdon, R., & Ziegler, J. (2001). DRC: A dual route cascaded model of visual word recognition and reading aloud. Psychological Review, 108, 204-256] have demonstrated that an equation derived from dual-route theory accurately predicts reading performance in young normal readers and in children with reading impairment due to developmental dyslexia or stroke. In this paper, we present evidence that the dual-route equation and a related multiple regression model also accurately predict both reading and spelling performance in adult neurological patients with acquired alexia and agraphia. These findings provide empirical support for dual-route theories of written language processing.
Rapcsak
Steven Z
SZ
Neurology Section, Southern Arizona VA Health Care System, Tucson, AZ, USA. szr@u.arizona.edu
Henry
Maya L
ML
Teague
Sommer L
SL
Carnahan
Susan D
SD
Beeson
Pélagie M
PM
D000328:Adult; D000367:Age Factors; D000368:Aged; D000381:Agraphia / Q000209:etiology / Q000503:physiopathology*; D000465:Algorithms; D001284:Atrophy; D002545:Brain Ischemia / Q000150:complications; D002540:Cerebral Cortex / Q000473:pathology / Q000503:physiopathology*; D004411:Dyslexia, Acquired / Q000209:etiology / Q000503:physiopathology*; D007839:Functional Laterality; D006801:Humans; D008875:Middle Aged; D008959:Models, Neurological; D009434:Neural Pathways / Q000503:physiopathology; D011932:Reading; D020521:Stroke / Q000150:complications