Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression

Abstract Attention may be oriented exogenously (i.e., involuntarily) to the location of salient stimuli, resulting in improved perception. However, it is unknown whether exogenous attention improves perception by facilitating processing of attended information, suppressing processing of unattended i...

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Autores principales:	Jonathan M. Keefe, Emilia Pokta, Viola S. Störmer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/eb30f6e45865494f8b932234e5a1ee20
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spelling	oai:doaj.org-article:eb30f6e45865494f8b932234e5a1ee202021-12-02T16:50:31ZCross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression10.1038/s41598-021-89654-x2045-2322https://doaj.org/article/eb30f6e45865494f8b932234e5a1ee202021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89654-xhttps://doaj.org/toc/2045-2322Abstract Attention may be oriented exogenously (i.e., involuntarily) to the location of salient stimuli, resulting in improved perception. However, it is unknown whether exogenous attention improves perception by facilitating processing of attended information, suppressing processing of unattended information, or both. To test this question, we measured behavioral performance and cue-elicited neural changes in the electroencephalogram as participants (N = 19) performed a task in which a spatially non-predictive auditory cue preceded a visual target. Critically, this cue was either presented at a peripheral target location or from the center of the screen, allowing us to isolate spatially specific attentional activity. We find that both behavior and attention-mediated changes in visual-cortical activity are enhanced at the location of a cue prior to the onset of a target, but that behavior and neural activity at an unattended target location is equivalent to that following a central cue that does not direct attention (i.e., baseline). These results suggest that exogenous attention operates via facilitation of information at an attended location.Jonathan M. KeefeEmilia PoktaViola S. StörmerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jonathan M. Keefe Emilia Pokta Viola S. Störmer Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression
description	Abstract Attention may be oriented exogenously (i.e., involuntarily) to the location of salient stimuli, resulting in improved perception. However, it is unknown whether exogenous attention improves perception by facilitating processing of attended information, suppressing processing of unattended information, or both. To test this question, we measured behavioral performance and cue-elicited neural changes in the electroencephalogram as participants (N = 19) performed a task in which a spatially non-predictive auditory cue preceded a visual target. Critically, this cue was either presented at a peripheral target location or from the center of the screen, allowing us to isolate spatially specific attentional activity. We find that both behavior and attention-mediated changes in visual-cortical activity are enhanced at the location of a cue prior to the onset of a target, but that behavior and neural activity at an unattended target location is equivalent to that following a central cue that does not direct attention (i.e., baseline). These results suggest that exogenous attention operates via facilitation of information at an attended location.
format	article
author	Jonathan M. Keefe Emilia Pokta Viola S. Störmer
author_facet	Jonathan M. Keefe Emilia Pokta Viola S. Störmer
author_sort	Jonathan M. Keefe
title	Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression
title_short	Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression
title_full	Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression
title_fullStr	Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression
title_full_unstemmed	Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression
title_sort	cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/eb30f6e45865494f8b932234e5a1ee20
work_keys_str_mv	AT jonathanmkeefe crossmodalorientingofexogenousattentionresultsinvisualcorticalfacilitationnotsuppression AT emiliapokta crossmodalorientingofexogenousattentionresultsinvisualcorticalfacilitationnotsuppression AT violasstormer crossmodalorientingofexogenousattentionresultsinvisualcorticalfacilitationnotsuppression
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Cross-modal orienting of exogenous attention results in visual-cortical facilitation, not suppression

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