Effects of Nonlinguistic Auditory Variations on Lexical Processing in Broca's Aphasics

Autor/inn/en	Kittredge, Audrey; Davis, Lissa; Blumstein, Sheila E.
Titel	Effects of Nonlinguistic Auditory Variations on Lexical Processing in Broca's Aphasics
Quelle	In: Brain and Language, 97 (2006) 1, S.25-40 (16 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0093-934X
DOI	10.1016/j.bandl.2005.07.012
Schlagwörter	Aphasia; Acoustics; Auditory Stimuli; Patients; Language Processing; Word Recognition; Semantics + Suchen Sie Ihr Suchwort? Expressive Aphasie; Aphasie; Akustik; Auditive Stimulation; Patient; Sprachverarbeitung; Worterkennung; Semantik
Abstract	In a series of experiments, the effect of white noise distortion and talker variation on lexical access in normal and Broca's aphasic participants was examined using an auditory lexical decision paradigm. Masking the prime stimulus in white noise resulted in reduced semantic priming for both groups, indicating that lexical access is degraded by nonlinguistic white noise distortion. However, talker variation within a prime-target pair had no effect upon the performance of either the normal or aphasic individuals. The absence of a talker variation effect suggests that voice-specific information is not encoded in the lexical representations of words. The normal performance of Broca's aphasics under conditions of both white noise and talker variation supports the view that these patients have a lexical processing impairment rather than a more generalized language deficit characterized by limited computational resources. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10