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Active gaze, visual look-ahead, and locomotor control

Wilkie, RM, Wann, JP and Allison, RS (2008) Active gaze, visual look-ahead, and locomotor control. Journal of Experimental Psychology: Human Perception and Performance, 34 (5). 1150 - 1164 . ISSN 0096-1523

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Abstract

The authors examined observers steering through a series of obstacles to determine the role of active gaze in shaping locomotor trajectories. Participants sat on a bicycle trainer integrated with a large field-of-view simulator and steered through a series of slalom gates. Steering behavior was determined by examining the passing distance through gates and the smoothness of trajectory. Gaze monitoring revealed which slalom targets were fixated and for how long. Participants tended to track the most immediate gate until it was about 1.5 s away, at which point gaze switched to the next slalom gate. To probe this gaze pattern, the authors then introduced a number of experimental conditions that placed spatial or temporal constraints on where participants could look and when. These manipulations resulted in systematic steering errors when observers were forced to use unnatural looking patterns, but errors were reduced when peripheral monitoring of obstacles was allowed. A steering model based on active gaze sampling is proposed, informed by the experimental conditions and consistent with observations in free-gaze experiments and with recommendations from real-world high-speed steering.

Item Type: Article
Copyright, Publisher and Additional Information: © 2008 American Psychological Association. This is an author produced version of a paper to be published in Journal of Experimental Psychology: Human Perception and Performance. Reproduced in accordance with the publisher's self-archiving policy. This article may not exactly replicate the final version published in the APA journal. It is not the copy of record.
Keywords: Bicycling, Eye Movements, Fixation, Ocular, Goals, Humans, Locomotion, Motor Skills, Orientation, Space Perception, Visual Perception
Academic Units: The University of Leeds > Faculty of Medicine and Health (Leeds) > Institute of Psychological Sciences (Leeds)
Depositing User: Symplectic Publications
Date Deposited: 17 Oct 2011 13:26
Last Modified: 08 Feb 2013 17:34
Published Version: http://dx.doi.org/10.1037/0096-1523.34.5.1150
Status: Published
Publisher: American Psychological Association
Identification Number: 10.1037/0096-1523.34.5.1150
URI: http://eprints.whiterose.ac.uk/id/eprint/43342

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