Lexical and Grammatical Factors in Sentence Production in Semantic Dementia: Insights from Greek

Autor/inn/en	Koukoulioti, Vasiliki; Stavrakaki, Stavroula; Konstantinopoulou, Eleni; Ioannidis, Panagiotis
Titel	Lexical and Grammatical Factors in Sentence Production in Semantic Dementia: Insights from Greek
Quelle	In: Journal of Speech, Language, and Hearing Research, 61 (2018) 4, S.870-886 (17 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/2017_JSLHR-L-17-0024
Schlagwörter	Semantics; Morphemes; Video Technology; Greek; Verbs; Error Analysis (Language); Phrase Structure; Task Analysis; Dementia; Language Impairments; Language Processing; Correlation; Control Groups; Sentence Structure; Grammar + Suchen Sie Ihr Suchwort? Semantik; Morphem; Grieche; Griechisch; Error analysis; Language; Fehleranalyse; Phrasenstruktur; Aufgabenanalyse; Demenz; Speech disorder; Speech disorders; Speech disabilities; Speech disability; Speech handicap; Speech handicaps; Speech impairment; Speech impairments; Language handicaps; Sprachbehinderung; Sprachverarbeitung; Korrelation; Satzbau; Satzstruktur; Grammatik
Abstract	Purpose: Language production in semantic dementia (SD) is characterized by a lexical-semantic deficit and largely preserved argument structure and inflection production. This study investigates (a) the effect of argument structure on verb retrieval and (b) the interrelation between inflection marking and verb retrieval in SD. Method: Seven individuals with SD and 7 healthy controls performed 2 sentence elicitation tasks. In Experiment 1, participants described the action taking place in a video. In Experiment 2, they watched the same videos preceded by a phrase prompting the production of past tense. Three verb classes were tested: (a) unergative (e.g., "to walk"), (b) unaccusative (e.g., "to fall"), and (c) transitive with 1 object (e.g., "to read a book"). Results: There was not any quantitative difference among the verb classes in Experiment 1, but error analysis hinted at difficulties related with argument structure complexity. The findings of Experiment 2 suggest no general effect of inflection on verb retrieval; nevertheless, inflection marking impeded the retrieval of verbs with complex argument structure. Large individual variation was established. Conclusions: Argument structure complexity may challenge speakers with SD. Verb retrieval and inflection marking seem to interrelate at the expense of the former. Inflection production may be affected at severe stages of the disease. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01