Far infrared thermography, which can be used to detect thermal radiation emitted by humans, has been used to detect physical disease, physiological changes relating to emotion, and polygraph testing, but has not been used for eye tracking. However, because the surface temperature of the cornea is colder than the limbus, it is theoretically possible to track corneal movements through thermal ima...

The two indices that have been proposed for quantifying the accuracy of smooth-following eye movements are shown to be interchangeable. This algebraic fact will permit comparability of values between laboratories only if workers who employ the signal-to-noise ratio (S/N) as their index measure S and N as the total signal and noise power, respectively, in the eye movement record.

This paper studies the use of eye tracking in a First-Person Shooter (FPS) game as a mechanism to (1) control the attention of the player’s avatar according to the attention deployed by the player and (2) guide the gameplay and game’s procedural content generation, accordingly. This results in a more natural use of eye tracking in comparison to a use in which the eye tracker directly substitute...

This is the introductory article for a Thematic Collection of four artic les on the use of eye-tracking systems in studies of infant perception and cognition that will appear in a Special Issue of Infancy in 2004.

This paper proposes Motion Structure Tracker (MST) to solve the problem of tracking in very crowded structured scenes. It combines visual tracking, motion pattern learning and multi-target tracking. Tracking in crowded scenes is very challenging due to hundreds of similar objects, cluttered background, small object size, and occlusions. However, structured crowded scenes exhibit clear motion pa...

3 Infrared Eye Tracker Hardware 4 Generation 1 4 Generation 2 4 Gaze Interpretation 5 Noise reduction 5 Corneal Reflection Detection 5 Pupil contour detection 6 Ellipse fitting 7 Calibration 7 Screen detection 7 Sources of Error 8 Parallax analysis 8 Device analysis 9 Discussion 10 3 EyesOn Mobile Eye Tracking Abstract Eye tracking is an extremely valuable resource for behavioral research and t...

Morgante et al. (in press) find inconsistencies in the time reporting of a Tobii T60XL eye tracker. Their study raises important questions about the use of the Tobii T-series in particular, and various software and hardware in general, in different infant eye tracking paradigms. It leaves open the question of the source of the inconsistencies. Here, observations from a Tobii eye tracker are pre...

40 High school students were given a battery of paper and pencil tests, which collectively assessed a variety of spatial abilities, graph and table competencies, conceptual mastery of calculus, and achievement in common topics from typical precalculus and calculus courses. In addition, students completed a computerpresented measure of Coordinating Multiple Representations (CMR), in which they h...

We investigated the time course of sentence formulation in Tagalog, a verb-initial language in which the verb obligatorily agrees with one of its arguments. Eye-tracked participants described pictures of transitive events. Fixations to the two characters in the events were compared across sentences differing in agreement marking and post-verbal word order. Fixation patterns show evidence for tw...