Pupillary and attention dynamics in response to road hazard detection

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dc.abstract.enHazard perception is the ability to anticipate and respond to potentially dangerous traffic situations, which is an important aspect of driving competence. This paper analyses pupil size fluctuations, changes in fixation duration, and the dynamics of ambient/focal attention in a laboratory hazard-perception task to measure underlying attentional and cognitive mechanisms that occur when drivers detect hazards. In the task, licensed drivers (n = 42) watched videos of natural driving scenarios recorded through a dashboard camera while their eye movements were recorded. They were asked to subjectively detect hazards (via a key press), which were later classified as either True- or False-Positive responses. We analyzed the time before and after the decision about the presence of a traffic hazard. As predicted, the pupil size increased over time. The pupil response was stronger for True than False hazard responses. The significant difference in pupil size between True and False responses appeared shortly before the decision and persisted for at least three seconds after it. There was no statistically significant differences in fixation duration over time, but True-Positive responses were related with higher fixation duration compared to False positive decisions. The increase in fixation duration was greater for True-Positive compared to False-Positive decisions. The analysis of ambient and focal attention dynamics revealed that participants maintained focal attention before and after hazard detection. The results show the potential for monitoring oculometrics in assistive driver systems for the detection of distraction and hazard perception in real time.
dc.affiliationWydział Psychologii w Warszawie
dc.affiliationInstytut Psychologii
dc.contributor.authorBaldisserotto, Filippo
dc.contributor.authorKrejtz, Krzysztof
dc.contributor.authorDominguez-Martinez, Estefania
dc.contributor.authorDuchowski, Andrew T.
dc.contributor.authorKrejtz, Izabela
dc.date.access2026-03-04
dc.date.accessioned2026-03-04T10:21:30Z
dc.date.available2026-03-04T10:21:30Z
dc.date.created2026
dc.date.issued2026-03
dc.description.accesstimeat_publication
dc.description.grantnumber101072410
dc.description.granttitleEyes4ICU
dc.description.physical1-16
dc.description.sdgNoSDGsAreRelevantForThisPublication
dc.description.versionfinal_published
dc.description.volume118
dc.identifier.doi10.1016/j.trf.2026.103543
dc.identifier.eissn1873-5517
dc.identifier.issn1369-8478
dc.identifier.urihttps://share.swps.edu.pl/handle/swps/2204
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/pii/S1369847826000380
dc.languageen
dc.pbn.affiliationpsychologia
dc.rightsCC-BY
dc.rights.questionYes_rights
dc.share.articleOTHER
dc.subject.enEye tracking
dc.subject.enDriving
dc.subject.enPupil dilation
dc.subject.enEye-movements
dc.subject.enHazard perception
dc.subject.enAmbient/focal attention
dc.swps.sciencecloudsend
dc.titlePupillary and attention dynamics in response to road hazard detection
dc.title.journalTransportation Research Part F: Traffic Psychology and Behaviour
dc.typeJournalArticle
dspace.entity.typeArticle