Mirror drawing in a deafferented patient and normal subjects: visuoproprioceptive conflict.
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.
Lajoie
Y
Y
Laboratoire de Performance Motrice Humaine, Université Laval, Québec, Canada.
Paillard
J
J
Teasdale
N
N
Bard
C
C
Fleury
M
M
Forget
R
R
Lamarre
Y
Y
D000328:Adult; D000344:Afferent Pathways / Q000502:physiology*; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D007858:Learning / Q000502:physiology; D009422:Nervous System Diseases / Q000503:physiopathology; D011434:Proprioception / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology; D013997:Time Factors; D014796:Visual Perception / Q000502:physiology*