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  • Title: Regular and irregular morphology and its relationship with agrammatism: evidence from two Spanish-Catalan bilinguals.
    Author: de Diego Balaguer R, Costa A, Sebastián-Galles N, Juncadella M, Caramazza A.
    Journal: Brain Lang; 2004 Nov; 91(2):212-22. PubMed ID: 15485710.
    Abstract:
    We report the performance of two aphasic patients in a morphological transformation task. Both patients are Spanish-Catalan bilingual speakers who were diagnosed with agrammatic Broca's aphasia. In the morphological transformation task, the two patients were asked to produce regular and irregular verb forms. The patients showed poorer performance with irregular than regular morphological transformations in both of their languages. These results are at odds with the proposal that agrammatic speech is always or even preponderantly associated with poorer performance in processing regular versus irregular verb form. Instead, these results support the view that a major component of agrammatic production is a deficit in morphosyntactic processing, independently of whether this processing ultimately involves regular or irregular forms.
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