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ERIC Number: EJ925753
Record Type: Journal
Publication Date: 2011-Jul
Pages: 8
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0278-2626
Dichotic Listening and Otoacoustic Emissions: Shared Variance between Cochlear Function and Dichotic Listening Performance in Adults with Normal Hearing
Markevych, Vladlena; Asbjornsen, Arve E.; Lind, Ola; Plante, Elena; Cone, Barbara
Brain and Cognition, v76 n2 p332-339 Jul 2011
The present study investigated a possible connection between speech processing and cochlear function. Twenty-two subjects with age range from 18 to 39, balanced for gender with normal hearing and without any known neurological condition, were tested with the dichotic listening (DL) test, in which listeners were asked to identify CV-syllables in a nonforced, and also attention-right, and attention-left condition. Transient evoked otoacoustic emissions (TEOAEs) were recorded for both ears, with and without the presentation of contralateral broadband noise. The main finding was a strong negative correlation between language laterality as measured with the dichotic listening task and of the TEOAE responses. The findings support a hypothesis of shared variance between central and peripheral auditory lateralities, and contribute to the attentional theory of auditory lateralization. The results have implications for the understanding of the cortico-fugal efferent control of cochlear activity. (Contains 4 tables and 3 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A