Visuomanual coordination in childhood: adaptation to visual distortion
Visuomanual coordination in childhood: adaptation to visual distortion
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DOI：
10.1007/s00221-002-1064-2
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发表时间：
2002-06-01
影响因子：
2
通讯作者：
Fleury, M
中科院分区：
文献类型：
--
作者：
Ferrel-Chapus, C;Hay, L;Fleury, M
实验的目的是研究儿童在视觉干扰下进行绘画运动的适应能力。5至11岁的儿童和一组成年人通过电脑屏幕提供的信息绘制钻石。屏幕显示要么直立，要么旋转180度。结果表明，没有直接的视觉的手产生更多的干扰，在最年轻的一组儿童相比，所有其他群体。尽管最初有一些困难，所有的孩子都在五次试验后达到了准确的控制。当面对视野的空间旋转时，年轻人再次比其他人更不安。所有的孩子都表现出相同的速度适应视觉旋转，但他们不同的适应策略。5岁和7岁的孩子转向前馈控制模式，包括快速手势的产生，然后进行错误评估，以纠正他们的下一个动作。年龄较大的儿童的特点是由一个渐进的整合的视觉和本体感受信息。它导致中风持续时间增加和速度降低。意义，增强了在线信息检索。然而，9岁的儿童在运动过程中比11岁的儿童更难恢复感觉信息，并继续使用错误反馈。最后，11岁儿童的视觉-手协调能力虽然与成人略有不同，但尚未完全成熟。
The aim of the experiment was to study the adaptive capacities of children to perform drawing movements while being visually perturbed. Children aged 5-11 years and a group of adults drew diamonds via information provided through a computer screen. The screen display was either upright or rotated 180degrees. Results showed that the absence of direct vision of the hand yielded more perturbation in the youngest group of children compared to all other groups. In spite of some initial difficulty, all children reached accurate control after five trials. When faced with spatial rotations of the visual field, youngsters were again more perturbed than others. All children showed the same rate of adaptation to visual rotations, but they differed on adaptive strategies. Five- and 7-year-olds shifted to a feedforward mode of control consisting of the production of a rapid gesture, followed by error evaluation in order to correct their next movement. Older children were characterised by a progressive integration of reafferent visual and proprioceptive information. It resulted in an increase in duration of strokes and reduced speed. meaning, enhanced on-line retrieval of information. However, 9-year-old children experienced more difficulty recuperating sensory information during movement than 11-year-olds, and kept using error feedback. Finally, visuomanual coordination in children aged 11 years, while slightly differing from that of adults, was not Yet totally mature.