Tresilian J R, Mon-Williams M, Coppard V L, Carson R G
Perception and Motor Systems Laboratory, School of Human Movement Studies, The University of Queensland, Brisbane, Australia.
J Mot Behav. 2005 Mar;37(2):103-10.
Adults are proficient at reaching to grasp objects of interest in a cluttered workspace. The issue of concern, obstacle avoidance, was studied in 3 groups of young children aged 11-12, 9-10, and 7-8 years (n=6 in each) and in 6 adults aged 18-24 years. Adults slowed their movements and decreased their maximum grip aperture when an obstacle was positioned close to a target object (the effect declined as the distance between target and obstacle increased). The children showed the same pattern, but the magnitude of the effect was quite different. In contrast to the adults, the obstacle continued to have a large effect when it was some distance from the target (and provided no physical obstruction to movement).
成年人擅长在杂乱的工作空间中伸手抓取感兴趣的物体。研究人员对三组儿童（11 - 12岁、9 - 10岁和7 - 8岁，每组n = 6）以及6名18 - 24岁的成年人进行了关于关注问题（即避障）的研究。当障碍物靠近目标物体时，成年人会放慢动作并减小最大握距（随着目标与障碍物之间距离的增加，这种影响会减弱）。儿童也表现出相同的模式，但影响的程度有很大差异。与成年人不同的是，当障碍物与目标有一定距离（且对移动没有物理阻碍）时，它仍会产生很大影响。
