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首页> 外文期刊>Journal of vision >The relationship between postural stability, head movements and visuomotor performance in children aged 3-11 years
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The relationship between postural stability, head movements and visuomotor performance in children aged 3-11 years

机译：3-11岁儿童姿势稳定性，头部运动和保护剂表现的关系

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Introduction: Manual dexterity requires that the head and body are stable so that vision can be used to generate movement and correct errors. Manual dexterity and postural control improve with age so the development of manual skill must involve changes in the relationship between head, body and hand. Nevertheless, this relationship has not been well investigated whilst participants undertake a manual task, probably because of the technical difficulties in simultaneous recording. Methods: We created a system capable of presenting visuomotor tasks whilst objectively measuring manual skill, head movements and postural sway. We explored performance in four conditions: (i) Stationary fixation; (ii) Eyes closed; (iii) Visual tracking of moving targets at slow, medium and fast speeds; (iv) Tracking the moving targets with a handheld stylus. 514 children were recruited aged 3-11 years. The strengths and difficulties questionnaire provided an index of autistic traits and these data were combined with a range of educational measures. Results: A relationship was found between postural sway with stationary fixation and manual dexterity performance. Adults were able to visually track the moving target with minimal head movements and postural sway. The younger children showed large head movements with associated postural adjustments. A clear trend towards adult behaviour was observed as a function of age. These effects were magnified when children tracked the moving target with the handheld stylus. A composite a??ASD traita?? score was found to significantly correlate with manual dexterity, postural stability, and head movement. Conclusions: These results suggest our system has potential as a population level tool for objectively measuring posture and detecting developmental disorders. These results will be discussed with regard to ongoing data collection in a cohort of 13,500 children (Born in Bradford) where performance on our task can be related to genetic, health and educational data on the children and parents.
机译：简介：手动灵巧要求头部和主体稳定，以便可以使用视觉来产生运动和正确的错误。手动灵巧和姿势控制随着年龄的增长而改善，所以手工技能的发展必须涉及头部，身体和手之间的关系的变化。然而，这种关系尚未得到很好的调查，同时参与者进行手动任务，可能是因为同时记录的技术困难。方法：我们创建了一个能够呈现Visuomotor任务的系统，同时客观地测量手动技能，头部运动和姿势摇摆。我们在四个条件下探讨了表现：（i）固定固定; （ii）闭着眼睛; （iii）以慢速，中等和快速速度的移动目标的视觉跟踪; （iv）用手扶式手写笔跟踪移动目标。 514名儿童被招募了3-11岁了。调查问卷的优势和困难提供了自闭症性状指标，这些数据与一系列教育措施相结合。结果：姿势摇摆与静止固定和手动灵活性能之间的关系。成年人能够在目视跟踪移动目标，最小的头部运动和姿势摇摆。年轻的孩子们表现出大量的姿势调整。作为年龄的职能，观察到成人行为的明显趋势。当儿童跟踪移动触控笔时，这些效果被放大。一个复合A ?? ASD Traita ??发现得分与手动灵活性，姿势稳定性和头部运动显着相关。结论：这些结果表明，我们的系统具有潜在的人口水平工具，用于客观测量姿势和检测发育障碍。这些结果将在13,500名儿童（出生于布拉德福德的队列）的持续数据收集方面，我们的任务表现可能与儿童和父母的遗传，健康和教育数据有关。

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