Journal
VISION RESEARCH
Volume 40, Issue 28, Pages 3873-3894Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0042-6989(00)00196-6
Keywords
eye movement; heading; motion parallax; optic flow; self-motion
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Funding
- NEI NIH HHS [R01 EY010923, EY10923] Funding Source: Medline
- NIMH NIH HHS [K02 MH01353] Funding Source: Medline
- NATIONAL EYE INSTITUTE [R01EY010923] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF MENTAL HEALTH [K02MH001353] Funding Source: NIH RePORTER
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How do observers perceive the path of self-motion during rotation? Previous research suggests that extra-retinal information about eye movements is necessary at high rotation rates (2-5 degrees /s), but those experiments used sparse random-dot displays. With dense texture-mapped displays, we find the path can be perceived from retinal flow alone at high simulated rotation rates if (a) dense motion parallax and (b) at least one reference object are available. We propose that the visual system determines instantaneous heading from the first-order motion parallax field, and recovers the path of self-motion by updating heading over time with respect to reference objects in the scene. (C) 2000 Elsevier Science Ltd. All rights reserved.
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