ASL 504 Remote Eye Tracker with Magnetic Head Tracking

The ASL 504 Remote Eye Tracker with Magnetic Head Tracking is a bright-pupil system that tracks gaze by sending an illumination from the remote unit to the left pupil of the participant. We have been using the eye tracker to examine how age and personality variables influence attention for emotional and non-emotional stimuli. This is the only system that can combine the magnetic head tracker with the pan tilt to virtually eliminate the need to reacquire the eye during motion or correct for point of gaze errors. It allows the participant approximately one square foot of head movement which eliminates the need for head restraint. It records gaze location 60 times per second, and calculates gaze position by following both the position of the pupil and corneal reflection.