Abstract
We report three experiments investigating the effect of perceptual grouping on the appearance of a bistable apparent-motion (Ternus) display. Subjects viewed a Ternus display embedded in an array of context elements that could potentially group with the Ternus elements. In contrast to several previous findings, we found that grouping influenced apparent motion perception. In Experiment 1, apparent motion perception was significantly affected via grouping by shape similarity, even when the visible persistence of the elements was controlled. In Experiment 2, elements perceived as moving without context were perceived as stationary when grouped with stationary context elements. In Experiment 3, elements perceived as stationary without context were perceived as moving when grouped with moving context elements. We argue that grouping in the spatial and temporal domains interact to yield perceptual experience of apparent-motion displays.
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The research in this article was supported by Grant 92-J-0186 from the Air Force Office of Scientific Research to S.Y.
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Kramer, P., Yantis, S. Perceptual grouping in space and time: Evidence from the Ternus display. Perception & Psychophysics 59, 87–99 (1997). https://doi.org/10.3758/BF03206851
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DOI: https://doi.org/10.3758/BF03206851