Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factors

Understanding the spatial and temporal dynamics of cognitive load during wayfinding is essential for designing adaptive navigation aids. While previous research has utilized physiological signals to infer cognitive states, few studies have examined how real-world environmental, user, and visual atte...

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Main Authors: Hua Liao, Jinhua Meng, Yue Zhou, Weihua Dong
Format: Article
Language:English
Published: Taylor & Francis Group 2025-08-01
Series:International Journal of Digital Earth
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Online Access:https://www.tandfonline.com/doi/10.1080/17538947.2025.2542960
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author Hua Liao
Jinhua Meng
Yue Zhou
Weihua Dong
author_facet Hua Liao
Jinhua Meng
Yue Zhou
Weihua Dong
author_sort Hua Liao
collection DOAJ
description Understanding the spatial and temporal dynamics of cognitive load during wayfinding is essential for designing adaptive navigation aids. While previous research has utilized physiological signals to infer cognitive states, few studies have examined how real-world environmental, user, and visual attention factors dynamically influence cognitive load in navigation. This exploratory study employed mobile eye tracking and pupillometry to examine inter-trial pupil dilation (IRTPD) as a proxy of cognitive load during real-world navigation. Thirty-seven participants followed predefined routes while their gaze behavior and pupil response were recorded. Using 16 influencing factors related to user, environment, and visual attention, this study modeled IRTPD through a linear mixed-effects model, achieving a conditional 63.6% R square and a marginal 7.8% R square. Results revealed that IRTPD increased near intersections, with more visible vegetation, and when fixating on people. Furthermore, IRTPD decreased with greater familiarity, sky visibility, time spent looking at maps or the sky, and increased distance from the starting point. Significant interaction effects revealed that gender moderated the impact of distance and attention-related factors on IRTPD. These findings improve our understanding of cognitive load dynamics during navigation and highlight the importance of integrating real-world gaze-based metrics and cognitive load monitoring into navigation system design.
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spelling doaj-art-7a8ac902239348d7927cc80b3f0bbff32025-08-25T11:31:51ZengTaylor & Francis GroupInternational Journal of Digital Earth1753-89471753-89552025-08-0118110.1080/17538947.2025.2542960Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factorsHua Liao0Jinhua Meng1Yue Zhou2Weihua Dong3Hunan Key Laboratory of Geospatial Big Data Mining and Application, School of Geographical Sciences, Hunan Normal University, Changsha, People’s Republic of ChinaHunan Key Laboratory of Geospatial Big Data Mining and Application, School of Geographical Sciences, Hunan Normal University, Changsha, People’s Republic of ChinaHunan Key Laboratory of Geospatial Big Data Mining and Application, School of Geographical Sciences, Hunan Normal University, Changsha, People’s Republic of ChinaAdvanced Interdisciplinary Institute of Satellite Applications, State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, People’s Republic of ChinaUnderstanding the spatial and temporal dynamics of cognitive load during wayfinding is essential for designing adaptive navigation aids. While previous research has utilized physiological signals to infer cognitive states, few studies have examined how real-world environmental, user, and visual attention factors dynamically influence cognitive load in navigation. This exploratory study employed mobile eye tracking and pupillometry to examine inter-trial pupil dilation (IRTPD) as a proxy of cognitive load during real-world navigation. Thirty-seven participants followed predefined routes while their gaze behavior and pupil response were recorded. Using 16 influencing factors related to user, environment, and visual attention, this study modeled IRTPD through a linear mixed-effects model, achieving a conditional 63.6% R square and a marginal 7.8% R square. Results revealed that IRTPD increased near intersections, with more visible vegetation, and when fixating on people. Furthermore, IRTPD decreased with greater familiarity, sky visibility, time spent looking at maps or the sky, and increased distance from the starting point. Significant interaction effects revealed that gender moderated the impact of distance and attention-related factors on IRTPD. These findings improve our understanding of cognitive load dynamics during navigation and highlight the importance of integrating real-world gaze-based metrics and cognitive load monitoring into navigation system design.https://www.tandfonline.com/doi/10.1080/17538947.2025.2542960Cognitive loadreal-world wayfindingeye trackingpedestrian navigationpupil dilationvisual attention
spellingShingle Hua Liao
Jinhua Meng
Yue Zhou
Weihua Dong
Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factors
International Journal of Digital Earth
Cognitive load
real-world wayfinding
eye tracking
pedestrian navigation
pupil dilation
visual attention
title Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factors
title_full Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factors
title_fullStr Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factors
title_full_unstemmed Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factors
title_short Investigating pupil dilation during real-world wayfinding: effects of user, environment, and visual attention factors
title_sort investigating pupil dilation during real world wayfinding effects of user environment and visual attention factors
topic Cognitive load
real-world wayfinding
eye tracking
pedestrian navigation
pupil dilation
visual attention
url https://www.tandfonline.com/doi/10.1080/17538947.2025.2542960
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AT jinhuameng investigatingpupildilationduringrealworldwayfindingeffectsofuserenvironmentandvisualattentionfactors
AT yuezhou investigatingpupildilationduringrealworldwayfindingeffectsofuserenvironmentandvisualattentionfactors
AT weihuadong investigatingpupildilationduringrealworldwayfindingeffectsofuserenvironmentandvisualattentionfactors