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Proprioceptive perception of phase variability

Wilson, A.D., Bingham, G.P. and Craig, J.C. (2003) Proprioceptive perception of phase variability. Journal of Experimental Psychology: Human Perception and Performance, 29 (6). pp. 1179-1190. ISSN 0096-1523

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Previous work has established that judgments of relative phase variability of 2 visually presented oscillators covary with mean relative phase. Ninety degrees is judged to be more variable than 0° or 180°, independently of the actual level of phase variability. Judged levels of variability also increase at 180°. This pattern of judgments matches the pattern of movement coordination results. Here, participants judged the phase variability of their own finger movements, which they generated by actively tracking a manipulandum moving at 0°, 90°, or 180°, and with 1 of 4 levels of Phase Variability. Judgments covaried as an inverted U-shaped function of mean relative phase. With an increase in frequency, 180° was judged more variable whereas 0° was not. Higher frequency also reduced discrimination of the levels of Phase Variability. This matching of the proprioceptive and visual results, and of both to movement results, supports the hypothesized role of online perception in the coupling of limb movements. Differences in the 2 cases are discussed as due primarily to the different sensitivities of the systems to the information.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright 2003 by the American Psychological Association, Inc. This is an author produced version of a paper published in 'Journal of Experimental Psychology: Human Perception and Performance'. Uploaded 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.
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Biological Sciences (Leeds) > Institute of Membrane and Systems Biology (Leeds) > Cardiovascular and Sports Sciences Group (Leeds)
Depositing User: Repository Officer
Date Deposited: 02 Oct 2009 16:24
Last Modified: 08 Feb 2013 17:06
Published Version: http://dx.doi.org/10.1037/0096-1523.29.6.1179
Status: Published
Publisher: American Psychological Association
Identification Number: 10.1037/0096-1523.29.6.1179
URI: http://eprints.whiterose.ac.uk/id/eprint/9808

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