The sensitivity of different methodologies for characterizing drivers’ gaze concentration under increased cognitive demand

An observer’s visual scanning behavior tends to narrow during periods of increased cognitive demand. Thus, measures of gaze concentration have become a popular method of gauging cognitive demand, but the consensus on the best method for computing gaze concentration is still evolving. This analysis considers measures of gaze concentration while driving an on-road vehicle, with and without two types of secondary cognitive demand (auditory and...