Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli

Article Article scientifique Article Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli eng 2021 author Ischer Matthieu 583375 author Coppin Géraldine 642559 author De Marles Axel 813103 author Essellier Myriam 754644 author Porcherot Christelle author Cayeux Isabelle author Margot Christian author Sander David 558712 author Delplanque Sylvain 0000-0002-9025-4754 634389 e0252943 10.1371/journal.pone.0252943 34111171 1932-6203 https://dx.plos.org/10.1371/journal.pone.0252943 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., CO2) 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 CO2 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. Olfaction Trigeminal Attention Dewey 128.37 Dewey 150 15 Centre interfacultaire en sciences affectives 0D8 108 Section de psychologie 71 false 1241 Affective sciences 593 Emergence et expression de l'émotion (E3 Lab) https://doi.org/10.17605/OSF.IO/6VPZH PLOS ONE 16 6 b92a2f52-5e62-4a62-a3d0-b988940bf3ff Article (Published version) Public 2021_Ischer_et_al_PLosONE.pdf 1480314 application/pdf CC BY openAccess Centres et instituts / Centre interfacultaire en sciences affectives Faculté de psychologie et des sciences de l'éducation / Section de psychologie

Title	Published in	Year	Views	Downloads

Exogenous capture of visual spatial attention by olfactory-trigeminal stimuli	PLOS ONE	2021	296	435
Détournement attentionnel par des stimuli olfactifs émotionnels		2016	226	2

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Essellier, Myriam