Age-dependent visual exploration during simulated day- and night driving on a motorway: a cross-sectional study

Urwyler, Prabitha; Gruber, Nicole; Müri, René Martin; Jäger, Michael; Bieri, Rahel; Nyffeler, Thomas; Mosimann, Urs Peter; Nef, Tobias (2015). Age-dependent visual exploration during simulated day- and night driving on a motorway: a cross-sectional study. BMC Geriatrics, 15(18), p. 18. BioMed Central 10.1186/s12877-015-0015-2

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BACKGROUND: Central and peripheral vision is needed for object detection. Previous research has shown that visual target detection is affected by age. In addition, light conditions also influence visual exploration. The aim of the study was to investigate the effects of age and different light conditions on visual exploration behavior and on driving performance during simulated driving. METHODS: A fixed-base simulator with 180 degree field of view was used to simulate a motorway route under daylight and night conditions to test 29 young subjects (25-40 years) and 27 older subjects (65-78 years). Drivers' eye fixations were analyzed and assigned to regions of interests (ROI) such as street, road signs, car ahead, environment, rear view mirror, side mirror left, side mirror right, incoming car, parked car, road repair. In addition, lane-keeping and driving speed were analyzed as a measure of driving performance. RESULTS: Older drivers had longer fixations on the task relevant ROI, but had a lower frequency of checking mirrors when compared to younger drivers. In both age groups, night driving led to a less fixations on the mirror. At the performance level, older drivers showed more variation in driving speed and lane-keeping behavior, which was especially prominent at night. In younger drivers, night driving had no impact on driving speed or lane-keeping behavior. CONCLUSIONS: Older drivers' visual exploration behavior are more fixed on the task relevant ROI, especially at night, when driving performance becomes more heterogeneous than in younger drivers.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > University Psychiatric Services > University Hospital of Geriatric Psychiatry and Psychotherapy
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Forschungsbereich Pavillon 52 > Forschungsgruppe Perzeption und Okulomotorik
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DCR Unit Sahli Building > Forschungsgruppe Neurologie

UniBE Contributor:

Urwyler-Harischandra, Prabitha; Gruber, Nicole; Müri, René Martin; Jäger, Michael; Bieri, Rahel; Nyffeler, Thomas; Mosimann, Urs Peter and Nef, Tobias

Subjects:

600 Technology > 610 Medicine & health
600 Technology > 620 Engineering

ISSN:

1471-2318

Publisher:

BioMed Central

Language:

English

Submitter:

Vanessa Vallejo

Date Deposited:

13 Jul 2015 13:38

Last Modified:

26 Jun 2016 02:05

Publisher DOI:

10.1186/s12877-015-0015-2

PubMed ID:

25888141

BORIS DOI:

10.7892/boris.70236

URI:

https://boris.unibe.ch/id/eprint/70236

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