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[Vol.21 No.4 contents]
Japanese/English
Full Text of this Articlein Japanese PDF (87K) |
| ArticleTitle | Pattern of sentence comprehension deficits in aphasia -Comparison to left frontal lesion and left temporal lesion- |
| Language | J |
| AuthorList | Michiko Kanno1), Ikuyo Fujita2), Ritsuo Hashimoto3), Tomoaki Ito2) |
| Affiliation |
1) Graduate School, International University of Health and Welfare Sciences Course 2) Department of Speech-Language Pathology and Audiology, International University of Health and Welfare 3) International University of Health and Welfare Hospital |
| Publication | Japanese Journal of Neuropsychology: 21 (4), 243-251, 2005 |
| Received | Jan 18, 2005 |
| Accepted | May 23, 2005 |
| Abstract |
It is hypothesized that syntactic parsing and semantic role interpretation are involved in the process of sentence comprehension (Saffran, 2001). However, it is not clear how these processes are executed in the brain. The task of sentence acceptability judgment was given to four brain-damaged subjects: two subjects with left frontal lesion (FLSs) and two subjects with left temporal lesion (TLSs). All subjects were impaired in understanding sentences. We examined how the patterns of sentence comprehension deficits were different in the two groups of subjects, using the task of sentence acceptability judgment controlled by two types of deviations (word vs. particle deviations) and two types of syntactic structures (simple vs. complex structures). The major results included the following 1) FLSs showed difficulty in judging acceptability of sentences with particle deviations, while TLSs showed difficulty in judging acceptability of sentences with word deviations. 2) The difference in syntactically simple and complex sentences did not influence acceptability judgments in either group of these aphasic patients. Taken together, these results suggested that the left frontal lobe is involved in processing sentences with particle deviations, while the left temporal lobe is involved in processing sentences with word deviations, indicating that each processing is performed in different region of the brain. |
| Keywords | aphasia, sentence processing, sentence plausibility judgment test, syntactic parsing, semantic interpretation |
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