Pupillary and attention dynamics in response to road hazard detection
Pupillary and attention dynamics in response to road hazard detection
StatusVoR
Alternative title
Authors
Baldisserotto, Filippo
Krejtz, Krzysztof
Dominguez-Martinez, Estefania
Duchowski, Andrew T.
Krejtz, Izabela
Monograph
Monograph (alternative title)
Date
2026-03
Publisher
Journal title
Transportation Research Part F: Traffic Psychology and Behaviour
Issue
Volume
118
Pages
Pages
1-16
ISSN
1369-8478
ISSN of series
Access date
2026-03-04
Abstract PL
Abstract EN
Hazard 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.
Abstract other
Keywords PL
Keywords EN
Eye tracking
Driving
Pupil dilation
Eye-movements
Hazard perception
Ambient/focal attention
Driving
Pupil dilation
Eye-movements
Hazard perception
Ambient/focal attention
Keywords other
Sustainable Development Goals
Exhibition title
Place of exhibition (institution)
Exhibition curator
Type
License type
Funder
Time range from
Time range to
Contact person name
Related publication
Related publication
Grant/project name
Eyes4ICU
Collections
Views
0Acquisition Date20.10.2022
Downloads
0Acquisition Date20.10.2022
Altmetrics©
Dimensions
Google Scholar
