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Negative morphemes in aphasia: Comments on Bebout (1993)
1Department of Linguistic Science, University of Reading, UK.
Abstract:
This article comments on a recent experimental study on production and comprehension of negative morphemes by aphasic adults (Bebout, 1993). It is argued that the different patterns seen in comprehension and production of 'not' and bound negative prefixes is predicted by Grodzinsky's (1990) model of syntactic deficits in agrammatism. The Competition Model of sentence processing is used to account for the high performance on 'not' in the production experiment. Neither Grodzinsky's model nor the Competition Model fully explain the performance patterns in Bebout's data by themselves, but in combination they can provide a uniform account.
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