Kim Hye Jin, Lee Cho Hee, Kim Eun Young
Soonchunhyang University, South Korea.
Hong Kong J Occup Ther. 2018 Dec;31(2):106-114. doi: 10.1177/1569186118819892. Epub 2019 Jan 3.
BACKGROUND/OBJECTIVE: Eye-hand coordination, which is essential for activities of daily living, develops with age. The objective of this study was to investigate the temporal patterns of visual fixation coupled with hands during manual action on objects in children and young adults.
Twelve eight-year-old children and 12 young adults performed the Jebsen-Taylor Hand Function Test (JTT) wearing eye-tracking glasses. The interval from the eye arrival time to the hand arrival time on an object was measured as eye-hand arrival span. The interval between the eye departure time and the hand departure time from the object was measured as eye-hand departure span. Eye-hand arrival span, eye-hand departure span and the performance time to complete the JTT were compared between children and young adults. Correlation between eye-hand arrival span and eye-hand departure span was analysed to identify the mechanism of eye-hand coordination.
Compared with young adults, children showed longer performance time but shorter eye-hand arrival span and eye-hand departure span in the JTT. The difference in mean eye-hand arrival span of overall JTT between children and young adults was significant for both hands, whereas differences in the mean eye-hand departure span on the overall JTT and the total performance time were significant for the non-dominant hand. The eye-hand arrival span was positively correlated with the eye-hand departure span.
This study demonstrated temporal differences in eye-hand coordination between children and young adults. Temporal patterns of visual fixation coupled to object manipulation could be useful information about the sensorimotor system in the field of occupational therapy.
背景/目的：眼手协调能力对于日常生活活动至关重要，且会随着年龄增长而发展。本研究的目的是调查儿童和年轻人在对物体进行手动操作时，视觉注视与手部动作相结合的时间模式。
12名8岁儿童和12名年轻人佩戴眼动追踪眼镜进行Jebsen-Taylor手部功能测试（JTT）。测量眼睛到达物体的时间与手到达物体的时间之间的间隔，作为眼手到达跨度。测量眼睛离开物体的时间与手离开物体的时间之间的间隔，作为眼手离开跨度。比较儿童和年轻人在眼手到达跨度、眼手离开跨度以及完成JTT的表现时间。分析眼手到达跨度和眼手离开跨度之间的相关性，以确定眼手协调的机制。
与年轻人相比，儿童在JTT中的表现时间更长，但眼手到达跨度和眼手离开跨度更短。儿童和年轻人在总体JTT中平均眼手到达跨度的差异在两只手上均具有显著性，而在总体JTT中平均眼手离开跨度和总表现时间的差异在非优势手上具有显著性。眼手到达跨度与眼手离开跨度呈正相关。
本研究证明了儿童和年轻人在眼手协调方面存在时间差异。与物体操作相关的视觉注视时间模式可能是职业治疗领域中有关感觉运动系统的有用信息。
