Action and Object Processing in Aphasia: From Nouns and Verbs to the Effect of Manipulability

Autor/inn/en	Arevalo, A.; Perani, D.; Cappa, S. F.; Butler, A.; Bates, E.; Dronkers, N.
Titel	Action and Object Processing in Aphasia: From Nouns and Verbs to the Effect of Manipulability
Quelle	In: Brain and Language, 100 (2007) 1, S.79-94 (16 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0093-934X
DOI	10.1016/j.bandl.2006.06.012
Schlagwörter	Nouns; Verbs; Aphasia; Patients; Control Groups; Language Processing; Word Recognition; Pictorial Stimuli; Comparative Analysis; Association (Psychology) + Suchen Sie Ihr Suchwort? Expressive Aphasie; Aphasie; Patient; Sprachverarbeitung; Worterkennung; Fantasieanregung; Assoziation
Abstract	The processing of words and pictures representing actions and objects was tested in 21 aphasic patients and 20 healthy controls across three word production tasks: picture-naming (PN), single word reading (WR) and word repetition (WRP). Analysis (1) targeted task and lexical category (noun-verb), revealing worse performance on PN and verb items for both patients and control participants. For Analysis (2) we used data collected in a concurrent gesture norming study to re-categorize the noun-verb items along hand imagery parameters (i.e., objects that can/cannot be manipulated and actions which do/do not involve fine hand movements). Here, patients displayed relative difficulty with the "manipulable" items, while controls displayed the opposite pattern. Therefore, whereas the noun-verb distinction resulted simply in lower verb accuracy across groups, the "manipulability" distinction revealed a "double-dissociation" between patients and control participants. These results carry implications for theories of embodiment, lexico-semantic dissociations, and the organization of meaning in the brain. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10