Viewer-Centered Temporal Biasing of 3-D Rotation Percepts
| Autor: | Donald P Gallogly, Robert J Papp, Allan Pantle, Olga L Cubells, Samuel J Reynolds |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Head (linguistics)
media_common.quotation_subject Motion Perception Experimental and Cognitive Psychology Models Psychological Rotation Luminance Three-dimensional space Optics Artificial Intelligence Orientation (geometry) Perception Computer Graphics Psychophysics Humans Computer vision media_common Psychological Tests Optical Illusions business.industry Biasing Sensory Systems Form Perception Ophthalmology Artificial intelligence business Psychology |
| Zdroj: | Perception. 27:1423-1436 |
| ISSN: | 1468-4233 0301-0066 |
| DOI: | 10.1068/p271423 |
| Popis: | The perceived direction of rotation of a 3-D cloud of dots can be biased by a prior rotation (Jiang, Pantle, and Mark, 1998 Perception & Psychophysics 60 275–286). In a series of experiments, it is shown that the temporal rotation bias is reversed by a 180° change of head orientation between two rotation sequences; ie the perceived direction of rotation reverses for the second of two sequences when head orientation is changed. The bias is, therefore, viewer-centered. Perceptual reversals are not obtained when the orientation of the head is changed and returned to its original position between rotation sequences. It was also found that the viewer-centered bias combined additively with viewer-independent near-far luminance information. Finally, the bias was manifest when 3-D depth was re-established, but not maintained, between rotation sequences. A model, in descriptive and flowchart forms, is used to explain the integration of world-centered information and a viewer-centered temporal bias on the presence/absence of perceptual reversals of the rotating virtual sphere. In the model, the temporal bias is the result of the coupling of depth values to persisting 2-D retinal motion signals. |
| Databáze: | OpenAIRE |
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