Abstract
Visual localization phenomena were studied before, during, and after a saccade. Light flashes of 5 and 9 msec duration presented before and during the eye movement were mislocated in the saccade direction, the localization error being a time function. When the 9-msec duration stimulus and saccade did not overlap in time, a stripe was reported, when they did not, the stimulus was perceived as a point. If a long-duration stimulus moved perpendicularly to the saccade direction with the same “sigmoidal” velocity, a curvilinear trace was perceived, regardless of the linear trace of the image on the retina. A stimulus with stabilized retinal image was perceived as a stationary point during the saccade. A possible theory to deal with the data was suggested by modifying the algebra of outflow-inflow theories.
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1. Matin, E., Matin, L., Pola, J., & Kowal. K.The intermittent light illusion and constancy of visual direction during voluntary saccades. Paper presented at the meetings of the Psychonomic Society, St. Louis, Missouri, 1969.
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Mateeff, S. Saccadic eye movements and localization of visual stimuli. Perception & Psychophysics 24, 215–224 (1978). https://doi.org/10.3758/BF03206092
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DOI: https://doi.org/10.3758/BF03206092