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Role of the dorsal attention network in distracter suppression based on features

Selective attention allows us to prioritize the processing of relevant information and filter out irrelevant information. Human functional neuroimaging and lesion-based studies have highlighted the fronto-parietal dorsal attention network (DAN) as an important network in this process. In this study,...

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Autores principales: Lanssens, Armien, Pizzamiglio, Gloria, Mantini, Dante, Gillebert, Celine R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Routledge 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882310/
https://www.ncbi.nlm.nih.gov/pubmed/31674886
http://dx.doi.org/10.1080/17588928.2019.1683525
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author Lanssens, Armien
Pizzamiglio, Gloria
Mantini, Dante
Gillebert, Celine R.
author_facet Lanssens, Armien
Pizzamiglio, Gloria
Mantini, Dante
Gillebert, Celine R.
author_sort Lanssens, Armien
collection PubMed
description Selective attention allows us to prioritize the processing of relevant information and filter out irrelevant information. Human functional neuroimaging and lesion-based studies have highlighted the fronto-parietal dorsal attention network (DAN) as an important network in this process. In this study, we investigated the role of the DAN in distracter suppression by dynamically modifying the priority of visual information (target > high priority distracter > low priority distracter) based on features only. To this end, we collected fMRI data in 24 healthy subjects, who performed a feature-based variant of the sustained attention to response task. Participants had to select one or attend two stream(s) of overlapping digits that differed in color and respond to each digit in the task-relevant stream(s) except to a single non-target digit. Results showed higher DAN activity when a target was co-presented with a high versus low priority distracter. Furthermore, higher DAN activity was observed when selectively attending one (target + high/low priority distracter) versus simultaneously attending two (target + target) stream(s) of digits. In conclusion, our study highlights the contribution of the DAN in the feature-based suppression of task-irrelevant information.
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spelling pubmed-68823102019-12-13 Role of the dorsal attention network in distracter suppression based on features Lanssens, Armien Pizzamiglio, Gloria Mantini, Dante Gillebert, Celine R. Cogn Neurosci Article Selective attention allows us to prioritize the processing of relevant information and filter out irrelevant information. Human functional neuroimaging and lesion-based studies have highlighted the fronto-parietal dorsal attention network (DAN) as an important network in this process. In this study, we investigated the role of the DAN in distracter suppression by dynamically modifying the priority of visual information (target > high priority distracter > low priority distracter) based on features only. To this end, we collected fMRI data in 24 healthy subjects, who performed a feature-based variant of the sustained attention to response task. Participants had to select one or attend two stream(s) of overlapping digits that differed in color and respond to each digit in the task-relevant stream(s) except to a single non-target digit. Results showed higher DAN activity when a target was co-presented with a high versus low priority distracter. Furthermore, higher DAN activity was observed when selectively attending one (target + high/low priority distracter) versus simultaneously attending two (target + target) stream(s) of digits. In conclusion, our study highlights the contribution of the DAN in the feature-based suppression of task-irrelevant information. Routledge 2019-11-01 /pmc/articles/PMC6882310/ /pubmed/31674886 http://dx.doi.org/10.1080/17588928.2019.1683525 Text en © 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Lanssens, Armien
Pizzamiglio, Gloria
Mantini, Dante
Gillebert, Celine R.
Role of the dorsal attention network in distracter suppression based on features
title Role of the dorsal attention network in distracter suppression based on features
title_full Role of the dorsal attention network in distracter suppression based on features
title_fullStr Role of the dorsal attention network in distracter suppression based on features
title_full_unstemmed Role of the dorsal attention network in distracter suppression based on features
title_short Role of the dorsal attention network in distracter suppression based on features
title_sort role of the dorsal attention network in distracter suppression based on features
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882310/
https://www.ncbi.nlm.nih.gov/pubmed/31674886
http://dx.doi.org/10.1080/17588928.2019.1683525
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