A circle-monitor for computerised assessment of visual neglect in peripersonal space

Ulm L., Wohlrapp D., Meinzer M., Steinicke R., Schatz A., Denzler P., Klehmet J., Dohle C., Niedeggen M., Meisel A. and Winter Y. (2013) A circle-monitor for computerised assessment of visual neglect in peripersonal space. PLoS ONE, 8 12: 82892.1-82892.10. doi:10.1371/journal.pone.0082892

Author Ulm L.
Wohlrapp D.
Meinzer M.
Steinicke R.
Schatz A.
Denzler P.
Klehmet J.
Dohle C.
Niedeggen M.
Meisel A.
Winter Y.
Title A circle-monitor for computerised assessment of visual neglect in peripersonal space
Journal name PLoS ONE   Check publisher's open access policy
ISSN 1932-6203
Publication date 2013-12-12
Year available 2013
Sub-type Article (original research)
DOI 10.1371/journal.pone.0082892
Open Access Status DOI
Volume 8
Issue 12
Start page 82892.1
End page 82892.10
Total pages 10
Place of publication San Francisco, United States
Publisher Public Library of Science (PLoS)
Language eng
Subject 1100 Agricultural and Biological Sciences
1300 Biochemistry, Genetics and Molecular Biology
2700 Medicine
Formatted abstract
Current assessment of visual neglect involves paper-and-pencil tests or computer-based tasks. Both have been criticised because of their lack of ecological validity as target stimuli can only be presented in a restricted visual range. This study examined the user-friendliness and diagnostic strength of a new "Circle-Monitor" (CM), which enlarges the range of the peripersonal space, in comparison to a standard paper-and-pencil test (Neglect-Test, NET).
Methods: Ten stroke patients with neglect and ten age-matched healthy controls were examined by the NET and the CM test comprising of four subtests (Star Cancellation, Line Bisection, Dice Task, and Puzzle Test).
Results: The acceptance of the CM in elderly controls and neglect patients was high. Participants rated the examination by CM as clear, safe and more enjoyable than NET. Healthy controls performed at ceiling on all subtests, without any systematic differences between the visual fields. Both NET and CM revealed significant differences between controls and patients in Line Bisection, Star Cancellation and visuo-constructive tasks (NET: Figure Copying, CM: Puzzle Test). Discriminant analyses revealed cross-validated assignment of patients and controls to groups was more precise when based on the CM (hit rate 90%) as compared to the NET (hit rate 70%).
The CM proved to be a sensitive novel tool to diagnose visual neglect symptoms quickly and accurately with superior diagnostic validity compared to a standard neglect test while being well accepted by patients. Due to its upgradable functions the system may also be a valuable tool not only to test for non-visual neglect symptoms, but also to provide treatment and assess its outcome.
Keyword Multidisciplinary Sciences
Science & Technology - Other Topics
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID UL 423/1-1
01 EO 08 01
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: UQ Centre for Clinical Research Publications
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