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  Distracting Linguistic Information Impairs Neural Tracking of Attended Speech

Dai, B., McQueen, J. M., Terporten, R., Hagoort, P., & Kösem, A. (2022). Distracting Linguistic Information Impairs Neural Tracking of Attended Speech. Current Research in Neurobiology, 3: 100043. doi:10.1016/j.crneur.2022.100043.

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© 2022 The Authors. Published by Elsevier B.V. This article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial use of the work as published, without adaptation or alteration provided the work is fully attributed.
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Dai, Bohan1, 2, Author           
McQueen, James M.2, 3, Author           
Terporten, Rene1, 2, Author           
Hagoort, Peter1, 2, Author           
Kösem, Anne1, 2, 4, 5, Author           
Affiliations:
1Neurobiology of Language Department, MPI for Psycholinguistics, Max Planck Society, ou_792551              
2Donders Institute for Brain, Cognition and Behaviour, External Organizations, ou_55236              
3Research Associates, MPI for Psycholinguistics, Max Planck Society, Wundtlaan 1, 6525 XD Nijmegen, NL, ou_2344700              
4International Max Planck Research School for Language Sciences, MPI for Psycholinguistics, Max Planck Society, ou_1119545              
5Lyon Neuroscience Research Center (CRNL), Bron, France, ou_persistent22              

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 Abstract: Listening to speech is difficult in noisy environments, and is even harder when the interfering noise consists of intelligible speech as compared to unintelligible sounds. This suggests that the competing linguistic information interferes with the neural processing of target speech. Interference could either arise from a degradation of the neural representation of the target speech, or from increased representation of distracting speech that enters in competition with the target speech. We tested these alternative hypotheses using magnetoencephalography (MEG) while participants listened to a target clear speech in the presence of distracting noise-vocoded speech. Crucially, the distractors were initially unintelligible but became more intelligible after a short training session. Results showed that the comprehension of the target speech was poorer after training than before training. The neural tracking of target speech in the delta range (1–4 Hz) reduced in strength in the presence of a more intelligible distractor. In contrast, the neural tracking of distracting signals was not significantly modulated by intelligibility. These results suggest that the presence of distracting speech signals degrades the linguistic representation of target speech carried by delta oscillations.

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Language(s): eng - English
 Dates: 2022-05-242022-04-282022
 Publication Status: Published in print
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 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.crneur.2022.100043
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Title: Current Research in Neurobiology
Source Genre: Journal
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Pages: - Volume / Issue: 3 Sequence Number: 100043 Start / End Page: - Identifier: -