Mirror drawing in a deafferented patient and normal subjects: visuoproprioceptive conflict.

Lajoie, Y; Paillard, J; Teasdale, N; Bard, C; Fleury, M; Forget, R; Lamarre, Y · Neurology · 1992

case_report · Level V

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Abstract

Results on a mirrow drawing task showed that a deafferented patient had no problem completing the pattern, whereas normal subjects needed more than four trials to attain a similar performance. The results suggest the presence of integrated visual and proprioceptive maps. The inversion of visual coordinates requires the need for a recalibration. Without proprioception, the task is more like a simple visual tracking task.

Medical subject headings