Using image analysis techniques to analyze figure-copying performance of patients with visuospatial neglect and control groups. |
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Authors: | Richard Guest Nick Donnelly Michael Fairhurst Jonathan Potter |
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Affiliation: | University of Kent, Canterbury, England. |
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Abstract: | Figure copying is often used to detect visuospatial neglect (VSN) in brain-damaged patients. We describe algorithms that enable the computation of parameters for describing figure-copying performance. The researcher can readily implement these algorithms on a computer using image analysis software, and they provide information on goodness-of-fit, relative to a standard model, as well as on dynamic aspects of subjects' performance in completing figure copies. To demonstrate the clinical utility of these algorithms, preliminary results from a group of right-hemisphere brain-damaged patients, some of whom have VSN, are compared with those for age-matched controls. |
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