On-line syntactic processing in aphasia: Studies with auditory moving window presentation  

Oleh:

Caplan, David ; Waters, Gloria

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 84 no. 2 (2003), page 222-249.
Fulltext: 84_02_Caplan.pdf (363.18KB)

Isi artikel

Twenty-eight aphasic patients with left hemisphere strokes and matched control subjects were tested on an auditory moving windows task in which successive phrases ofa sentence were presented in response to subjects' self-paced button presses and subjects made timed judgments regarding the plausibility ofeach sentence. Pairs ofsentences were presented that differed in syntactic complexity. Patients made more errors and/or took longer in making the plausibility judgments than controls, and were more affected than controls by the syntactic complexity ofa sentence in these judgments. Normal subjects showed effects ofsyntactic structure in self-paced listening. On-line syntactic effects differed in patients as a function of their comprehension level. High-performing patients showed the same effects as normal control subjects; low performing patients did not show the same effects of syntactic structure. On-line syntactic effects also differed in patients as a function of their clinical diagnosis. Broca's aphasic patients' on-line performances suggested that they were not processing complex syntactic structures on-line, while fluent aphasics' performances suggested that their comprehension impairment occurred after on-line processing was accomplished. The results indicate that many aphasic patients retain their ability to process syntactic structure on-line, and that different groups ofpatients with syntactic comprehension disorders show different patterns ofon-line syntactic processing.

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