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Effects of acoustic and semantic cues on listening effort during native and non-native speech perception

Borghini, G; Hazan, V; (2020) Effects of acoustic and semantic cues on listening effort during native and non-native speech perception. Journal of the Acoustical Society of America , 147 (6) , Article 3783. 10.1121/10.0001126.

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Abstract

Relative to native listeners, non-native listeners who are immersed in a second language environment experience increased listening effort and a reduced ability to successfully perform an additional task while listening. Previous research demonstrated that listeners can exploit a variety of intelligibility-enhancing cues to cope with adverse listening conditions. However, little is known about the implications of those speech perception strategies for listening effort. The current research aims to investigate by means of pupillometry how listening effort is modulated in native and non-native listeners by the availability of semantic context and acoustic enhancements during the comprehension of spoken sentences. For this purpose, semantic plausibility and speaking style were manipulated both separately and in combination during a speech perception task in noise. The signal to noise ratio was individually adjusted for each participant in order to target 50% intelligibility level. Behavioural results indicated that native and non-native listeners were equally able to fruitfully exploit both semantic and acoustic cues to aid their comprehension. Pupil data indicated that listening effort was reduced for both groups of listeners when acoustic enhancements were available, while the presence of a plausible semantic context did not lead to a reduction in listening effort.

Type: Article
Title: Effects of acoustic and semantic cues on listening effort during native and non-native speech perception
DOI: 10.1121/10.0001126
Publisher version: https://doi.org/10.1121/10.0001126
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Speech, Hearing and Phonetic Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10100724
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