Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual Capacity

Visual capacity generally declines as people age, yet its impact on visual search patterns along different road sections of actual driving still remains undocumented. In this on-road driving study, we simultaneously recorded 30 older drivers’ eye movement and precise vehicle movement trajectories. T...

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Main Authors: Qian Sun, Jianhong (Cecilia) Xia, Torbjörn Falkmer, Hoe Lee
Format: Article
Language:English
Published: Bern Open Publishing 2016-08-01
Series:Journal of Eye Movement Research
Subjects:
Online Access:https://bop.unibe.ch/JEMR/article/view/2828
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author Qian Sun
Jianhong (Cecilia) Xia
Torbjörn Falkmer
Hoe Lee
author_facet Qian Sun
Jianhong (Cecilia) Xia
Torbjörn Falkmer
Hoe Lee
author_sort Qian Sun
collection DOAJ
description Visual capacity generally declines as people age, yet its impact on visual search patterns along different road sections of actual driving still remains undocumented. In this on-road driving study, we simultaneously recorded 30 older drivers’ eye movement and precise vehicle movement trajectories. The vehicle positions were linked to every eye fixation of individual drivers so that we know the locations of a driver's gaze origin in geospatial coordinates. Spatial distribution pattern of drivers’ eye fixations (duration and frequency) were then analysed. We further investigated the associations between older drivers’ visual capacity (processing speed, divided and selective attention) and their eye fixation patterns in various driving manoeuvres. The results indicate that driving scenarios have significant impact on older drivers’ visual patterns. Older drivers performed more frequent eye fixations when manoeuvreing through roundabouts, while they tended to fixate on certain objects much longer during straight road driving. The key findings show that the processing speed and divided attention of older drivers were associated with their eye fixations at complex right-turns; drivers with a lower capacity for selective attention performed less frequent eye fixations at roundabout manoeuvres. This study has also demonstrated that visualisation and spatial statistics are effective and intuitive approaches in eye movement analysis.
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spelling doaj.art-18910e04b73c402891bf64552405b4f22022-12-21T20:41:08ZengBern Open PublishingJournal of Eye Movement Research1995-86922016-08-019610.16910/jemr.9.6.2Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual CapacityQian Sun0Jianhong (Cecilia) Xia1Torbjörn Falkmer2Hoe Lee3Department of Spatial Sciences, Curtin University, AustraliaCurtin University, AustraliaCurtin University, Australia Linköping University, Sweden La Trobe University, AustraliaCurtin University, AustraliaVisual capacity generally declines as people age, yet its impact on visual search patterns along different road sections of actual driving still remains undocumented. In this on-road driving study, we simultaneously recorded 30 older drivers’ eye movement and precise vehicle movement trajectories. The vehicle positions were linked to every eye fixation of individual drivers so that we know the locations of a driver's gaze origin in geospatial coordinates. Spatial distribution pattern of drivers’ eye fixations (duration and frequency) were then analysed. We further investigated the associations between older drivers’ visual capacity (processing speed, divided and selective attention) and their eye fixation patterns in various driving manoeuvres. The results indicate that driving scenarios have significant impact on older drivers’ visual patterns. Older drivers performed more frequent eye fixations when manoeuvreing through roundabouts, while they tended to fixate on certain objects much longer during straight road driving. The key findings show that the processing speed and divided attention of older drivers were associated with their eye fixations at complex right-turns; drivers with a lower capacity for selective attention performed less frequent eye fixations at roundabout manoeuvres. This study has also demonstrated that visualisation and spatial statistics are effective and intuitive approaches in eye movement analysis.https://bop.unibe.ch/JEMR/article/view/2828Eye fixationvisual attentionolder driversdriving manoeuvresGIS (Geographic Information System)
spellingShingle Qian Sun
Jianhong (Cecilia) Xia
Torbjörn Falkmer
Hoe Lee
Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual Capacity
Journal of Eye Movement Research
Eye fixation
visual attention
older drivers
driving manoeuvres
GIS (Geographic Information System)
title Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual Capacity
title_full Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual Capacity
title_fullStr Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual Capacity
title_full_unstemmed Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual Capacity
title_short Investigating the Spatial Pattern of Older Drivers’ Eye Fixation Behaviour and Associations with Their Visual Capacity
title_sort investigating the spatial pattern of older drivers eye fixation behaviour and associations with their visual capacity
topic Eye fixation
visual attention
older drivers
driving manoeuvres
GIS (Geographic Information System)
url https://bop.unibe.ch/JEMR/article/view/2828
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AT torbjornfalkmer investigatingthespatialpatternofolderdriverseyefixationbehaviourandassociationswiththeirvisualcapacity
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