Academic journal article Attention, Perception and Psychophysics

Bringing Saccade Attractors into Focus

Academic journal article Attention, Perception and Psychophysics

Bringing Saccade Attractors into Focus

Article excerpt

GAZE TRACKING

Kienzle et al. (2009). Center-surround patterns emerge as optimal predictors for human saccade targets. J Vis, 9, 7. Available at http://journalofvision.org/9/5/7.

Psychophysical methods are getting more and more subtle and powerful. Springboarding from the method of classif ication images pioneered by Ahumada and Lovell (1971, J Acoust Soc Am 49:1751) in psychoacoustics and introduced into vision science by Ahumada (1996, Percep 26[Suppl. 1]:18 [Abstract]), researchers are f inding new and more penetrating ways to analyze the control of behavior by the multiple features of complex stimuli. A nice example of research on the cutting edge of this effort is Kienzle et al.'s study, in which the authors undertake a nonlinear systems analysis of the process that controls where people spontaneously fixate as they take in a complex scene. They asked observers just to "look around in the scene" shown in each of a series of photos taken at various German zoos while the authors tracked the observers' saccadic fixations. A standard classification-image-type approach to this problem would simply average the patches of image centered at the different fixations. …

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