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Abstract #3936

Driving with distraction: brain activity and oculomotor behaviour using fMRI and eye-tracking

Nicole Yuen1,2, Fred Tam2, Nathan Churchill3, Tom Schweizer3, and Simon Graham1,2
1Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada, 2Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada, 3St. Michael's Hospital, Toronto, ON, Canada

This study sheds further light on the neural correlates of driving behaviour and distracted driving, an important road-safety issue. Functional MRI and simultaneous eye-tracking measurements are performed during simulated driving tasks with and without auditory distraction. Initial results are consistent with previously published fMRI findings, showing changes in the occipital lobes, temporal lobes and frontal regions that are associated with increasing cognitive demand and distraction. These observations, and their interpretation, are consistent with reductions in the gaze field-of-view and increases in pupil diameter that reflect how the brain deals with cognitive challenges during realistic driving scenarios.

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