Semantic feature representations for normal and aphasic language |
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Authors: | EB Zurif A Caramazza R Myerson J Galvin |
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Institution: | 1. Aphasia Research Center, Boston University School of Medicine USA;2. Boston Veterans Administration Hospital USA |
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Abstract: | Aphasic and non-neurological patients grouped nouns on the basis of similarity of meaning. These word groupings served as input matrices for hierarchical clustering and multidimensional scaling analyses. The emergent structures suggest that, while the normal adult has a number of levels upon which to organize his lexicon, the adult aphasic's lexicon can be characterized as a set of partial entries that are tied to affective and situational data. The results also suggest that semantic feature representations derived from similarity-of-meaning judgments are of relevance in the study of factors which influence actual language performance. |
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Keywords: | Reprints may be obtained from E Zurif Aphasia Research Center 14th floor 150 S Huntington Ave Boston Mass 02130 |
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