Task-specific adaptations of postural sway in sitting infants.
Task-specific adaptations of postural sway in sitting infants.
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坐着婴儿的姿势摇摆的特定任务适应。
DOI：
10.1002/dev.21910
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发表时间：
2019
影响因子：
2.2
通讯作者：
Laura J. Claxton
中科院分区：
文献类型：
--
作者：
A. Arnold;Joshua Liddy;Rachel C. Harris;Laura J. Claxton
当婴儿坐着从事手工或视觉任务时，他们会根据同时进行的任务需求来调整自己的姿势摇摆。目前尚不清楚这些调节是否对并发任务需求的差异敏感（拿着玩具与看着别人拿着的玩具），以及支撑表面的特性是否影响这些适应。我们调查了婴儿在拿着玩具或坐在不同的支撑表面上时视觉上注意别人拿着的玩具时改变姿势摇摆的能力。26名独立坐着的婴儿坐在放置在测力板上的坚固且顺从的表面上，同时看着或拿着玩具。根据压力中心数据计算姿势摇摆的测量值。与拿着玩具相比，视觉上关注玩具与较少的摇摆和较低的摇摆速度相关。令人惊讶的是，表面顺应性并不影响摇摆，也没有相互作用的影响。虽然摇摆调节可能有助于婴儿在手动和视觉并发任务上的表现，但视觉任务对姿势系统施加了更多约束，导致姿势摇摆的适应性更强。这些发现为婴儿如何分配注意力和协调感知运动信息以发展坐姿技能提供了见解。
When engaging in manual or visual tasks while sitting, infants modify their postural sway based on concurrent task demands. It remains unclear whether these modulations are sensitive to differences in concurrent task demands (holding a toy vs. looking at a toy being held by someone else), and whether the properties of the support surface impact these adaptations. We investigated infants' ability to modify postural sway when holding a toy or visually attending to a toy someone else was holding while sitting on different support surfaces. Twenty-six independently sitting infants sat on solid and compliant surfaces placed on a force plate while looking at or holding a toy. Measures of postural sway were calculated from the center of pressure data. Visually attending to a toy was associated with less sway and lower sway velocity than when holding a toy. Surprisingly, surface compliance did not affect sway and there were no interaction effects. Whereas sway modulations may facilitate infants' performance on both manual and visual concurrent tasks, the visual task placed more constraints on the postural system leading to greater adaptations in postural sway. These findings provide insights into how infants are allocating attention and coordinating perceptual-motor information in developing sitting skills.
影响因子：
0.9
作者：
Kyvelidou,Anastasia;Stergiou,Nick
通讯作者：
Stergiou,Nick
姿势视觉控制发展中的感知-动作耦合。
DOI：
10.1037//0096-1523.23.6.1631
发表时间：
1997
期刊：
Journal of experimental psychology. Human perception and performance
影响因子：
--
作者：
Bertenthal,BI;Rose,JL;Bai,DL
通讯作者：
Bai,DL