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Commun Sci Disord. 2012;17(2): 322-337.
Comprehension of Active and Passive Sentences in Korean Aphasics: Evidence for Processing Deficit Hypothesis
So-Young Choi`
Copyright ©2012 The Korean Academy of Speech-Language Pathology and Audiology
최소영(So-Young Choi)
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Background & Objectives
Several models of comprehension deficits in agrammatic aphasia rely on structural impairments in syntactic representations. However, recent studies have found that there are differences in aphasics’ sentence-processing routines depending on the reason for the processing deficit. Therefore, the purpose of this study is to present reasons for using a particular processing approach based on the language-specific characteristics of Koreans.
In order to compare individuals’ sentence-comprehension abilities, this study measured the accuracy and reaction times (RT) of 16 aphasic patients (AP) and 16 normal controls (NC) during a sentence-picture matching task. In comparison with the “morphological passive” where a suffix is used, the “semantic passive” consists of sentences derived solely from a verb that has passive meaning properties (ex: “danghada” means “undergo something”).
Both groups showed higher error rates and longer RT in the passive condition irrespective of sentence type (morphological/semantic). These results indicate that a high aptitudeis needed in order to understand passive expressions and the frequency of usage was considered one of the possible factors affecting these results.
Discussion & Conclusion
The results of this study suggest that the aphasic impairment of sentence comprehension can be explained by aprocessing deficit rather than agrammar-oriented hypothesis.
Keywords: 실어증 | 능ㆍ피동문 이해 | 처리 손상 가설 | 한국어 | aphasia | sentence comprehension | processing deficit hypothesis
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