Enhancing speech perception in noise through articulation

Author:

Perron Maxime12ORCID,Liu Qiying12,Tremblay Pascale34ORCID,Alain Claude1256ORCID

Affiliation:

1. Department of Psychology University of Toronto Toronto Ontario Canada

2. Baycrest Academy for Research and Education Rotman Research Institute North York Ontario Canada

3. CERVO Brain Research Center Quebec City Quebec Canada

4. École de Réadaptation, Faculté de Médecine Université Laval Quebec City Quebec Canada

5. Institute of Medical Sciences University of Toronto Toronto Ontario Canada

6. Music and Health Science Research Collaboratory University of Toronto Toronto Ontario Canada

Abstract

AbstractConsiderable debate exists about the interplay between auditory and motor speech systems. Some argue for common neural mechanisms, whereas others assert that there are few shared resources. In four experiments, we tested the hypothesis that priming the speech motor system by repeating syllable pairs aloud improves subsequent syllable discrimination in noise compared with a priming discrimination task involving same–different judgments via button presses. Our results consistently showed that participants who engaged in syllable repetition performed better in syllable discrimination in noise than those who engaged in the priming discrimination task. This gain in accuracy was observed for primed and new syllable pairs, highlighting increased sensitivity to phonological details. The benefits were comparable whether the priming tasks involved auditory or visual presentation. Inserting a 1‐h delay between the priming tasks and the syllable‐in‐noise task, the benefits persisted but were confined to primed syllable pairs. Finally, we demonstrated the effectiveness of this approach in older adults. Our findings substantiate the existence of a speech production–perception relationship. They also have clinical relevance as they raise the possibility of production‐based interventions to improve speech perception ability. This would be particularly relevant for older adults who often encounter difficulties in perceiving speech in noise.

Funder

Natural Sciences and Engineering Research Council of Canada

Canadian Institutes of Health Research

Publisher

Wiley

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