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

Oleh:

Sequeira, Sarah Dos Santos ; Specht, Karsten ; Hämäläinen, Heikki ; Hugdahl, Kenneth

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 107 no. 1 (2008), page 11-15.
Topik: Dichotic listening; Speech sound perception; Noise perception; CV-syllables; Lateralization
Fulltext: 107_01_Sequeira.pdf (233.98KB)

Isi artikel

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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