Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/91025
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Type: Journal article
Title: The effects of ageing and visual field loss on pointing to visual targets
Author: Rubinstein, N.
Anderson, A.
Ma-Wyatt, A.
Walland, M.
McKendrick, A.
Citation: PLoS One, 2014; 9(5):e97190-1-e97190-9
Publisher: Public Library of Science
Issue Date: 2014
ISSN: 1932-6203
1932-6203
Editor: Bex, P.
Statement of
Responsibility: 
Nikki J. Rubinstein, Andrew J. Anderson, Anna Ma-Wyatt, Mark J. Walland, Allison M. McKendrick
Abstract: Purpose: To investigate the effect of ageing on visuomotor function and subsequently evaluate the effect of visual field loss on such function in older adults. Methods: Two experiments were performed: 1) to determine the effect of ageing on visual localisation and subsequent pointing precision, and 2) to determine the effect of visual field loss on these outcome measures. For Experiment 1, we measured visual localisation and pointing precision radially at visual eccentricities of 5, 10 and 15u in 25 older (60–72 years) and 25 younger (20–31 years) adults. In the pointing task, participants were asked to point to a target on a touchscreen at a natural pace that prioritised accuracy of the touch. In Experiment 2, a subset of these tasks were performed at 15u eccentricity under both monocular and binocular conditions, by 8 glaucoma (55–76 years) and 10 approximately agematched controls (61–72 years). Results: Visual localisation and pointing precision was unaffected by ageing (p.0.05) and visual field loss (p.0.05), although movement time was increased in glaucoma (p = 0.01). Conclusion: Visual localisation and pointing precision to high contrast stimuli within the central 15u of vision are unaffected by ageing. Even in the presence of significant visual field loss, older adults with glaucoma are able perform such tasks with reasonable precision provided the target can be perceived and movement time is not restricted.
Keywords: Humans
Vision, Low
Glaucoma
Analysis of Variance
Photic Stimulation
Space Perception
Psychomotor Performance
Aging
Visual Fields
Fixation, Ocular
Adult
Aged
Middle Aged
Rights: © 2014 Rubinstein et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
DOI: 10.1371/journal.pone.0097190
Grant ID: http://purl.org/au-research/grants/arc/FT0990930
http://purl.org/au-research/grants/arc/FT120100407
Published version: http://dx.doi.org/10.1371/journal.pone.0097190
Appears in Collections:Aurora harvest 2
Psychology publications

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