Neural correlates of distraction and conflict resolution for nonverbal auditory events

Abstract In everyday situations auditory selective attention requires listeners to suppress task-irrelevant stimuli and to resolve conflicting information in order to make appropriate goal-directed decisions. Traditionally, these two processes (i.e. distractor suppression and conflict resolution) ha...

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Autores principales:	Hannah J. Stewart, Sygal Amitay, Claude Alain
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b82b49da4db34bb1868fea4bc2df87a4
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spelling	oai:doaj.org-article:b82b49da4db34bb1868fea4bc2df87a42021-12-02T11:41:19ZNeural correlates of distraction and conflict resolution for nonverbal auditory events10.1038/s41598-017-00811-72045-2322https://doaj.org/article/b82b49da4db34bb1868fea4bc2df87a42017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00811-7https://doaj.org/toc/2045-2322Abstract In everyday situations auditory selective attention requires listeners to suppress task-irrelevant stimuli and to resolve conflicting information in order to make appropriate goal-directed decisions. Traditionally, these two processes (i.e. distractor suppression and conflict resolution) have been studied separately. In the present study we measured neuroelectric activity while participants performed a new paradigm in which both processes are quantified. In separate block of trials, participants indicate whether two sequential tones share the same pitch or location depending on the block’s instruction. For the distraction measure, a positive component peaking at ~250 ms was found – a distraction positivity. Brain electrical source analysis of this component suggests different generators when listeners attended to frequency and location, with the distraction by location more posterior than the distraction by frequency, providing support for the dual-pathway theory. For the conflict resolution measure, a negative frontocentral component (270–450 ms) was found, which showed similarities with that of prior studies on auditory and visual conflict resolution tasks. The timing and distribution are consistent with two distinct neural processes with suppression of task-irrelevant information occurring before conflict resolution. This new paradigm may prove useful in clinical populations to assess impairments in filtering out task-irrelevant information and/or resolving conflicting information.Hannah J. StewartSygal AmitayClaude AlainNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hannah J. Stewart Sygal Amitay Claude Alain Neural correlates of distraction and conflict resolution for nonverbal auditory events
description	Abstract In everyday situations auditory selective attention requires listeners to suppress task-irrelevant stimuli and to resolve conflicting information in order to make appropriate goal-directed decisions. Traditionally, these two processes (i.e. distractor suppression and conflict resolution) have been studied separately. In the present study we measured neuroelectric activity while participants performed a new paradigm in which both processes are quantified. In separate block of trials, participants indicate whether two sequential tones share the same pitch or location depending on the block’s instruction. For the distraction measure, a positive component peaking at ~250 ms was found – a distraction positivity. Brain electrical source analysis of this component suggests different generators when listeners attended to frequency and location, with the distraction by location more posterior than the distraction by frequency, providing support for the dual-pathway theory. For the conflict resolution measure, a negative frontocentral component (270–450 ms) was found, which showed similarities with that of prior studies on auditory and visual conflict resolution tasks. The timing and distribution are consistent with two distinct neural processes with suppression of task-irrelevant information occurring before conflict resolution. This new paradigm may prove useful in clinical populations to assess impairments in filtering out task-irrelevant information and/or resolving conflicting information.
format	article
author	Hannah J. Stewart Sygal Amitay Claude Alain
author_facet	Hannah J. Stewart Sygal Amitay Claude Alain
author_sort	Hannah J. Stewart
title	Neural correlates of distraction and conflict resolution for nonverbal auditory events
title_short	Neural correlates of distraction and conflict resolution for nonverbal auditory events
title_full	Neural correlates of distraction and conflict resolution for nonverbal auditory events
title_fullStr	Neural correlates of distraction and conflict resolution for nonverbal auditory events
title_full_unstemmed	Neural correlates of distraction and conflict resolution for nonverbal auditory events
title_sort	neural correlates of distraction and conflict resolution for nonverbal auditory events
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b82b49da4db34bb1868fea4bc2df87a4
work_keys_str_mv	AT hannahjstewart neuralcorrelatesofdistractionandconflictresolutionfornonverbalauditoryevents AT sygalamitay neuralcorrelatesofdistractionandconflictresolutionfornonverbalauditoryevents AT claudealain neuralcorrelatesofdistractionandconflictresolutionfornonverbalauditoryevents
_version_	1718395422267932672

Neural correlates of distraction and conflict resolution for nonverbal auditory events

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