Location

Olympic Valley — Lake Tahoe, California

Date

29-6-2011

Session

Session 6 – Lectures Attention & Distraction

Abstract

Pupil diameter can be used as a physiological measure of cognitive load in driving simulator studies. However, pupil size depends on both cognitive load and lighting conditions. In order to accurately estimate cognitive load these two effects must be separated. In our study we introduce illumination only, cognitive only and combined tasks. Based on these we decouple the two effects on pupil diameter and we design a predictor of the pupil’s reaction to light which can be used to estimate changes in pupil diameter that are due to cognitive load.

Rights

Copyright © 2011 the author(s)

DC Citation

Proceedings of the Sixth International Driving Symposium on Human Factors in Driver Assessment, Training and Vehicle Design, June 27-30, 2011, Olympic Valley — Lake Tahoe, California. Iowa City, IA: Public Policy Center, University of Iowa, 2011: 329-336.

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Jun 29th, 12:00 AM

Exploring the Influence of Light and Cognitive Load on Pupil Diameter in Driving Simulator Studies

Olympic Valley — Lake Tahoe, California

Pupil diameter can be used as a physiological measure of cognitive load in driving simulator studies. However, pupil size depends on both cognitive load and lighting conditions. In order to accurately estimate cognitive load these two effects must be separated. In our study we introduce illumination only, cognitive only and combined tasks. Based on these we decouple the two effects on pupil diameter and we design a predictor of the pupil’s reaction to light which can be used to estimate changes in pupil diameter that are due to cognitive load.