Conference Proceeding

Pilot Study of Gaze Scanning and Intersection Detection Failures by Drivers with Hemianopia

Authors: Alex R Bowers (Harvard Medical School, Boston, MA) , José F Alberti (Harvard Medical School, Boston, MA) , Alex D Hwang (Harvard Medical School, Boston, MA) , Robert Goldstein (Harvard Medical School, Boston, MA) , Eli Peli (Harvard Medical School, Boston, MA)

Abstract

In a prior study, intersection detection failures of individuals with hemianopia were strongly associated with inadequate head scanning; however, eye position was not tracked. In this pilot study, we tracked eye and head movements, and examined the relationship between gaze scanning and detection of pedestrians at intersections in a driving simulator. Gaze scan deficits, in particular not scanning sufficiently far into the blind hemifield, were the main reason for detection failures at the extreme edge of the clear-sight triangle in the blind hemifield. In addition, the gaze data revealed detection failures due to looked-but-failed-to-see events. The results suggest that HH drivers may be at increased risk for collisions at intersections.

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How to Cite: Bowers, A. , Alberti, J. , Hwang, A. , Goldstein, R. & Peli, E. (2015) “Pilot Study of Gaze Scanning and Intersection Detection Failures by Drivers with Hemianopia”, Driving Assessment Conference. 8(2015). doi: https://doi.org/10.17077/drivingassessment.1578