Evaluating the Effects of Saccade Types and Directions on Eye Pointing Tasks
summary
A 2D IDeye extension is implemented and fit to data from two experiments with 12 saccade directions and 12 amplitude/width/height combinations per direction to predict eye movement time (EMT) and eye pointing time (EPT). Measures are average distance (AD), EMT and EPT; saccade direction and saccade type significantly affect all three. Centripetal saccades yield better performance for harder targets, target height weighs more than width, omega varies with direction, and the 2D IDeye model fits better than Fitts’ law.
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