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Link to original content: http://pubmed.ncbi.nlm.nih.gov/18602155/
The effects of background noise on dichotic listening to consonant-vowel syllables - PubMed Skip to main page content
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Randomized Controlled Trial
. 2008 Oct;107(1):11-5.
doi: 10.1016/j.bandl.2008.06.001. Epub 2008 Jul 3.

The effects of background noise on dichotic listening to consonant-vowel syllables

Sarah Dos Santos Sequeira  1 , Karsten Specht, Heikki Hämäläinen, Kenneth Hugdahl
Affiliations
Randomized Controlled Trial

The effects of background noise on dichotic listening to consonant-vowel syllables

Sarah Dos Santos Sequeira et al. Brain Lang. 2008 Oct.

Abstract

Lateralization of verbal processing is frequently studied with the dichotic listening technique, yielding a so called right ear advantage (REA) to consonant-vowel (CV) syllables. However, little is known about how background noise affects the REA. To address this issue, we presented CV-syllables either in silence or with traffic background noise vs. 'babble'. Both 'babble' and traffic noise resulted in a smaller REA compared to the silent condition. The traffic noise, moreover, had a significantly greater negative effect on the REA than the 'babble', caused both by a decreased right ear response as well as an increased left ear response. The results are discussed in terms of alertness and attentional factors.

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