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Visual transformations underlying apparent movement

Perception & Psychophysics volume 33, pages 85–92 (1983)Cite this article

Abstract

Apparent movement of a rigid object is seen when two different views of the same object are separated by relatively long distances and times. In a series of experiments, the minimum stimulus-onset asynchrony (SOA) required for the apparent form-preserving movement of an object was recorded. In Experiment 1, an object was alternately displayed in two positions obtained by displacing and rotating the object about the center of the display screen. In Experiment 2, objects varying in size were presented in alternate positions, again differing by both location and orientation. In Experiment 3, stimulus location and orientation were varied orthogonally. In all three experiments, the minimum SOA was predicted by a linear combination of the distance separating the two locations of the object and the angle separating the two orientations of the object. The results support the hypothesis that the long-range apparent movement of a rigid object may be constructed by internal processes corresponding to rotation and translation of the object.

Reference Notes

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Author notes

  1. Joyce E. Farrell

    Present address: Department of Psychology, New York University, 10003, New York, New York

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    Authors
    1. Joyce E. Farrell
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    Additional information

    This work was done in partial fulfillment of the doctoral dissertation requirement in psychology at Stanford University. The work was supported by a National Institute of Mental Health training grant to Joyce E. Farrell and National Science Foundation Research Grant BNS-7S-02806 to Roger N. Shepard.

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    Farrell, J.E. Visual transformations underlying apparent movement. Perception & Psychophysics 33, 85–92 (1983). https://doi.org/10.3758/BF03205870

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    • DOI: https://doi.org/10.3758/BF03205870

    Keywords

    • Angular Difference
    • Stimulus Orientation
    • Rigid Object
    • Object Part
    • Picture Plane