Figure 6.3 Eye-tracking technology
allows psychologists to study visual
search behaviour in expert athletes
Source: Courtesy of Andrew Flood, Department of Psychology,
University College, Dublin
The ASL system is a video-based monocular corneal-reflection system that measures
the perceiver’s point of gaze with respect to video images recorded by an infra-red eye
camera and a scene camera (which is usually floor-mounted). This system works by
detecting two features, namely, the position of the pupil and the corneal reflex, in a video
Sport and exercise psychology: A critical introduction 166