What is it about?
This paper investigates the effect of verb complexity and inflection on sentence production in semantic dementia, a form of primary progressive aphasia. The semantics of the verbs as well as the kind of arguments they take affect sentence production. Inflection is not impaired per se but it takes place at cost of verb retrieval in complex verbs. We found large individual variability and correlations with the cognitive and language screening tests.
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Perspectives
In the context of increasing research interest in primary progressive aphasia, this paper investigates the morphosyntactic abilities in a population in which syntax and inflection are supposed to be spared. It shows that this is not the case and that even in the semantic variant of PPA syntactic deficits are present. Moreover, it provides preliminary evidence that the semantic impairment is selective as far as verbs as concerned.
Dr Vasiliki Koukoulioti
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This page is a summary of: Lexical and Grammatical Factors in Sentence Production in Semantic Dementia: Insights From Greek, Journal of Speech Language and Hearing Research, April 2018, American Speech-Language-Hearing Association (ASHA),
DOI: 10.1044/2017_jslhr-l-17-0024.
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