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Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli

The extent to which a nasal whiff of scent can exogenously orient visual spatial attention remains poorly understood in humans. In a series of seven studies, we investigated the existence of an exogenous capture of visual spatial attention by purely trigeminal (i.e., CO(2)) and both olfactory and tr...

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Autores principales: Ischer, Matthieu, Coppin, Géraldine, De Marles, Axel, Essellier, Myriam, Porcherot, Christelle, Cayeux, Isabelle, Margot, Christian, Sander, David, Delplanque, Sylvain
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8191882/
https://www.ncbi.nlm.nih.gov/pubmed/34111171
http://dx.doi.org/10.1371/journal.pone.0252943
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author Ischer, Matthieu
Coppin, Géraldine
De Marles, Axel
Essellier, Myriam
Porcherot, Christelle
Cayeux, Isabelle
Margot, Christian
Sander, David
Delplanque, Sylvain
author_facet Ischer, Matthieu
Coppin, Géraldine
De Marles, Axel
Essellier, Myriam
Porcherot, Christelle
Cayeux, Isabelle
Margot, Christian
Sander, David
Delplanque, Sylvain
author_sort Ischer, Matthieu
collection PubMed
description The extent to which a nasal whiff of scent can exogenously orient visual spatial attention remains poorly understood in humans. In a series of seven studies, we investigated the existence of an exogenous capture of visual spatial attention by purely trigeminal (i.e., CO(2)) and both olfactory and trigeminal stimuli (i.e., eucalyptol). We chose these stimuli because they activate the trigeminal system which can be considered as an alert system and are thus supposedly relevant for the individual, and thus prone to capture attention. We used them as lateralized cues in a variant of a visual spatial cueing paradigm. In valid trials, trigeminal cues and visual targets were presented on the same side whereas in invalid trials they were presented on opposite sides. To characterize the dynamics of the cross-modal attentional capture, we manipulated the interval between the onset of the trigeminal cues and the visual targets (from 580 to 1870 ms). Reaction times in trigeminal valid trials were shorter than all other trials, but only when this interval was around 680 or 1170 ms for CO(2) and around 610 ms for eucalyptol. This result reflects that both pure trigeminal and olfactory-trigeminal stimuli can exogenously capture humans’ spatial visual attention. We discuss the importance of considering the dynamics of this cross-modal attentional capture.
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spelling pubmed-81918822021-06-10 Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli Ischer, Matthieu Coppin, Géraldine De Marles, Axel Essellier, Myriam Porcherot, Christelle Cayeux, Isabelle Margot, Christian Sander, David Delplanque, Sylvain PLoS One Research Article The extent to which a nasal whiff of scent can exogenously orient visual spatial attention remains poorly understood in humans. In a series of seven studies, we investigated the existence of an exogenous capture of visual spatial attention by purely trigeminal (i.e., CO(2)) and both olfactory and trigeminal stimuli (i.e., eucalyptol). We chose these stimuli because they activate the trigeminal system which can be considered as an alert system and are thus supposedly relevant for the individual, and thus prone to capture attention. We used them as lateralized cues in a variant of a visual spatial cueing paradigm. In valid trials, trigeminal cues and visual targets were presented on the same side whereas in invalid trials they were presented on opposite sides. To characterize the dynamics of the cross-modal attentional capture, we manipulated the interval between the onset of the trigeminal cues and the visual targets (from 580 to 1870 ms). Reaction times in trigeminal valid trials were shorter than all other trials, but only when this interval was around 680 or 1170 ms for CO(2) and around 610 ms for eucalyptol. This result reflects that both pure trigeminal and olfactory-trigeminal stimuli can exogenously capture humans’ spatial visual attention. We discuss the importance of considering the dynamics of this cross-modal attentional capture. Public Library of Science 2021-06-10 /pmc/articles/PMC8191882/ /pubmed/34111171 http://dx.doi.org/10.1371/journal.pone.0252943 Text en © 2021 Ischer et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Ischer, Matthieu
Coppin, Géraldine
De Marles, Axel
Essellier, Myriam
Porcherot, Christelle
Cayeux, Isabelle
Margot, Christian
Sander, David
Delplanque, Sylvain
Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli
title Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli
title_full Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli
title_fullStr Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli
title_full_unstemmed Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli
title_short Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli
title_sort exogenous capture of visual spatial attention by olfactory-trigeminal stimuli
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8191882/
https://www.ncbi.nlm.nih.gov/pubmed/34111171
http://dx.doi.org/10.1371/journal.pone.0252943
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