Selective looking with minimal eye movements |
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Authors: | David Littman Robert Becklen |
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Institution: | 1. Cornell University, 14853, Ithaca, New York
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Abstract: | Neisser and Becklen (1975) showed that one of two visually superimposed events could be followed without interference from the other. Neisser and Becklen allowed their subjects to move their eyes without restriction. The present experiment eliminated the possibility that the tracking eye movements of the subjects, which could have been used to maintain the stability of the event on the retina, were instrumental in following the desired event. The experiment of Neisser and Becklen was essentially replicated with one exception: subjects were required to fixate a spot in the center of the visual field during one-half of the trials. It was no more difficult for subjects to follow either a single event or one of two superimposed events when fixation was required. The suggestion was made that eye movements do not initiate a perceptual act, but rather are dependent upon perceptual anticipations. |
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