知的障害者のエイミング制御における視覚フィードバックの役割

概要

論文の詳細を見る
The purpose of the present study was to investigate the role of visual feedback on aimed limb movements in individuals with mental retardation, by measuring movement time (MT), the ratio of the ballistic control phase to the corrective control phase (RBC), and the ratio of peak velocity to movement time (RPM) of the velocity curve. 24 individuals without mental retardation and 23 individuals with mental retardation participated in this experiment. They performed aimed movements under both a vision condition (VC) and a no-vision condition (NVC). We found that both groups performed the movements more quickly in the vision condition than in the no-vision condition, and that the ratio of the ballistic control phase to the corrective control phase, and the ratio of peak velocity to movement time, were not influenced by the effect of visual feedback, although there was a difference in the ratio of peak velocity to movement time between groups. The results suggest that individuals with mental retardation are better than might be expected at planning their aimed movements in advance.
2002-03-31