Word-Category Violations in Patients with Broca's Aphasia: An ERP Study

Autor/inn/en	Wassenaar, Marlies; Hagoort, Peter
Titel	Word-Category Violations in Patients with Broca's Aphasia: An ERP Study
Quelle	In: Brain and Language, 92 (2005) 2, S.117-137 (21 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0093-934X
DOI	10.1016/j.bandl.2004.05.011
Schlagwörter	Patients; Aphasia; Brain; Syntax; Language Processing; Brain Hemisphere Functions; Control Groups; Computer Assisted Testing + Suchen Sie Ihr Suchwort? Patient; Expressive Aphasie; Aphasie; Gehirn; Sprachverarbeitung
Abstract	An event-related brain potential experiment was carried out to investigate on-line syntactic processing in patients with Broca's aphasia. Subjects were visually presented with sentences that were either syntactically correct or contained violations of word-category. Three groups of subjects were tested: Broca patients (N=11), non-aphasic patients with a right hemisphere (RH) lesion (N=9), and healthy aged-matched controls (N=15). Both control groups appeared sensitive to the violations of word-category as shown by clear P600/SPS effects. The Broca patients displayed only a very reduced and delayed P600/SPS effect. The results are discussed in the context of a lexicalist parsing model. It is concluded that Broca patients are hindered to detect on-line violations of word-category, if word class information is incomplete or delayed available. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10