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Controlling steering and judging heading: retinal flow, visual direction, and extraretinal information

Wilkie, R. and Wann, J. (2003) Controlling steering and judging heading: retinal flow, visual direction, and extraretinal information. Journal of Experimental Psychology-Human Perception and Performance, 29 (2). pp. 363-378. ISSN 0096-1523

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To link to this article DOI: 10.1037/0096-1523.29.2.363

Abstract/Summary

The contribution of retinal flow (RF), extraretinal (ER), and egocentric visual direction (VD) information in locomotor control was explored. First, the recovery of heading from RF was examined when ER information was manipulated; results confirmed that ER signals affect heading judgments. Then the task was translated to steering curved paths, and the availability and veracity of VD were manipulated with either degraded or systematically biased RE Large steering errors resulted from selective manipulation of RF and VD, providing strong evidence for the combination of RF, ER, and VD. The relative weighting applied to RF and VD was estimated. A point-attractor model is proposed that combines redundant sources of information for robust locomotor control with flexible trajectory planning through active gaze.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Psychology and Clinical Language Sciences
ID Code:13818
Uncontrolled Keywords:EYE-MOVEMENTS, SELF-MOTION, OPTICAL-FLOW, PERCEPTION, LOCOMOTION, ROTATION, GUIDANCE, LOOKING

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