Grammatical encoding in aphasia: evidence from a "processing prosthesis".

Autor: Linebarger MC; Natural Language Understanding, Unisys Corporation, Malvern, PA 19355, USA. linebarger@alum.mit.edu, Schwartz MF, Romania JR, Kohn SE, Stephens DL
Jazyk: angličtina
Zdroj: Brain and language [Brain Lang] 2000 Dec; Vol. 75 (3), pp. 416-27.
DOI: 10.1006/brln.2000.2378
Abstrakt: Agrammatic aphasia is characterized by severely reduced grammatical structure in spoken and written language, often accompanied by apparent insensitivity to grammatical structure in comprehension. Does agrammatism represent loss of linguistic competence or rather performance factors such as memory or resource limitations? A considerable body of evidence supports the latter hypothesis in the domain of comprehension. Here we present the first strong evidence for the performance hypothesis in the domain of production: an augmentative communication system that markedly increases the grammatical structure of agrammatic speech while providing no linguistic information, functioning merely to reduce on-line processing demands.
Databáze: MEDLINE