期刊
COGNITIVE NEUROPSYCHOLOGY
卷 17, 期 8, 页码 665-682出版社
PSYCHOLOGY PRESS
DOI: 10.1080/026432900750038281
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资金
- Biotechnology and Biological Sciences Research Council [S18749] Funding Source: researchfish
- Biotechnology and Biological Sciences Research Council [S18749] Funding Source: Medline
We present the case of a fluent aphasic patient who is impaired at producing nouns relative to verbs in picture naming, sentence completion, and sentence generation tasks, but is better at both producing and comprehending concrete nouns than abstract nouns. Moreover, he displays a selective difficulty in producing the plural forms of some nouns and pseudowords presented as nouns, but was able to produce the phonologically identical third-person singular forms of corresponding verb homonyms and of the same pseudowords presented as verbs. This pattern of performance casts doubt on the hypothesis that grammatical class effects are always epiphenomena of more general semantic impairments that affect the naming of actions or of concrete objects, and suggests that these effects may arise instead from damage to syntactic processes pertaining specifically to the grammatical properties of words. We also discuss the implications of such damage for models of morphological processing.
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