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  • Title: Dissociations and associations of performance in syntactic comprehension in aphasia and their implications for the nature of aphasic deficits.
    Author: Caplan D, Michaud J, Hufford R.
    Journal: Brain Lang; 2013 Oct; 127(1):21-33. PubMed ID: 24061104.
    Abstract:
    Sixty-one pwa were tested on syntactic comprehension in three tasks: sentence-picture matching, sentence-picture matching with auditory moving window presentation, and object manipulation. There were significant correlations of performances on sentences across tasks. First factors on which all sentence types loaded in unrotated factor analyses accounted for most of the variance in each task. Dissociations in performance between sentence types that differed minimally in their syntactic structures were not consistent across tasks. These results replicate previous results with smaller samples and provide important validation of basic aspects of aphasic performance in this area of language processing. They point to the role of a reduction in processing resources and of the interaction of task demands and parsing and interpretive abilities in the genesis of patient performance.
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