How voicing, place and manner of articulation differently modulate event-related potentials associated with response inhibition

Abstract : The experimental investigation of response inhibition and the neuropsychological assessment of impulsivity are classically conducted with Go/Nogo tasks, where the participant presses a key for standard (Go) stimuli and withholds the response for deviant (Nogo) ones. However, auditory Go/Nogo tasks frequently fail to elicit the typical ERP correlates of response inhibition (N2, P3). We elaborated an auditory Go/Nogo experiment with speech stimuli (VCV) and sufficient difficulty level (Go and Nogo stimuli differed by one phonetic feature only) to strongly involve response inhibition. An N2 wave – the earlier correlate of inhibition – was recorded in 15 healthy adults. This result encourages the use of auditory Go/Nogo tasks to assess impulsivity, which results in decreased N2 amplitude. Additionally, a substantial P3 was observed as a secondary correlate of inhibition. Its amplitude was clearly modulated by the perceptual salience of the phonetic difference: P3 was highest for manner of articulation, then voicing, and it was smallest for place differences. ERP indices of the right-hemisphere involvement in voicing processing are also reported. This auditory Go/Nogo task therefore appears useful as a clinical tool for impulsivity assessment and an experimental way to address phonetic issues.
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Communication dans un congrès
14th Annual Conference of the International Speech Communication Association (Interspeech 2013), Aug 2013, Lyon, France. Proceedings of the Annual Conference of the International Speech Communication Association, 2013
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https://hal-univ-diderot.archives-ouvertes.fr/hal-01240240
Contributeur : Emmanuel Ferragne <>
Soumis le : mardi 8 décembre 2015 - 20:35:35
Dernière modification le : jeudi 11 janvier 2018 - 06:16:05

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  • HAL Id : hal-01240240, version 1

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Nathalie Bedoin, Jennifer Krzonowski, Emmanuel Ferragne. How voicing, place and manner of articulation differently modulate event-related potentials associated with response inhibition. 14th Annual Conference of the International Speech Communication Association (Interspeech 2013), Aug 2013, Lyon, France. Proceedings of the Annual Conference of the International Speech Communication Association, 2013. 〈hal-01240240〉

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