Impact of simulated visual impairment on the cognitive test performance of young adults

Wood, Joanne M., Chaparro, Alex, Anstey, Kaarin J., Hsing, Y. Eve, Johnsson, Alexia, Morse, Anna, & Wainwright, Sara (2009) Impact of simulated visual impairment on the cognitive test performance of young adults. British Journal of Psychology, 100(3), pp. 593-602.

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Aims: This study investigated the effect of simulated visual impairment on the speed and accuracy of performance on a series of commonly used cognitive tests. ----- Methods: Cognitive performance was assessed for 30 young, visually normal subjects (M=22.0yrs ± 3.1 yrs) using the Digit Symbol Substitution Test (DSST), Trail Making Test (TMT) A and B and the Stroop Colour Word Test under three visual conditions: normal vision and two levels of visually degrading filters (VistechTM) administered in a random order. Distance visual acuity and contrast sensitivity were also assessed for each filter condition. ----- Results: The visual filters, which degraded contrast sensitivity to a greater extent than visual acuity, significantly increased the time to complete (p<0.05), but not the number of errors made, on the DSST and the TMT A and B and affected only some components of the Stroop test.----- Conclusions: Reduced contrast sensitivity had a marked effect on the speed but not the accuracy of performance on commonly used cognitive tests, even in young individuals; the implications of these findings are discussed.

Impact and interest:

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7 citations in Web of Science®

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ID Code: 30005
Item Type: Journal Article
Refereed: Yes
Additional URLs:
DOI: 10.1348/000712608X374723
ISSN: 0007-1269
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Optometry & Vision Science
Copyright Owner: The British Psychological Society
Deposited On: 28 Jan 2010 22:19
Last Modified: 29 Feb 2012 14:09

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