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Childrens Recall of Words Spoken in Their First and Second Language: Effects of Signal-to-Noise Ratio and Reverberation Time
Linköping University, The Swedish Institute for Disability Research. University of Gavle, Sweden; University of Dalama, Sweden.
University of Gavle, Sweden.
University of Gavle, Sweden.
University of Gavle, Sweden.
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2016 (English)In: Frontiers in Psychology, ISSN 1664-1078, E-ISSN 1664-1078, Vol. 6Article in journal (Refereed) Published
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Abstract [en]

Speech perception runs smoothly and automatically when there is silence in the background, but when the speech signal is degraded by background noise or by reverberation, effortful cognitive processing is needed to compensate for the signal distortion. Previous research has typically investigated the effects of signal-to-noise ratio (SNR) and reverberation time in isolation, whilst few have looked at their interaction. In this study, we probed how reverberation time and SNR influence recall of words presented in participants first- (L1) and second-language (L2). A total of 72 children (10 years old) participated in this study. The to-be-recalled wordlists were played back with two different reverberation times (0.3 and 1.2 s) crossed with two different SNRs (+3 dBA and +12 dBA). Children recalled fewer words when the spoken words were presented in L2 in comparison with recall of spoken words presented in L1. Words that were presented with a high SNR (+12 dBA) improved recall compared to a low SNR (+3 dBA). Reverberation time interacted with SNR to the effect that at +12 dB the shorter reverberation time improved recall, but at +3 dB it impaired recall. The effects of the physical sound variables (SNR and reverberation time) did not interact with language.

Place, publisher, year, edition, pages
FRONTIERS MEDIA SA , 2016. Vol. 6
Keyword [en]
children; speech perception; reverberation time; signal-to-noise ratio; second-language; classroom acoustics
National Category
Psychology (excluding Applied Psychology)
Identifiers
URN: urn:nbn:se:liu:diva-124633DOI: 10.3389/fpsyg.2015.02029ISI: 000368055900001PubMedID: 26834665OAI: oai:DiVA.org:liu-124633DiVA: diva2:901770
Note

Funding Agencies|Swedish Research Council Formas [242-2010-1006]

Available from: 2016-02-09 Created: 2016-02-08 Last updated: 2017-11-30

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Sörqvist, Patrik
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The Swedish Institute for Disability ResearchCognition, Development and DisabilityFaculty of Arts and Sciences
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