Lee Kiseok, Junghans Barbara M, Ryan Malcolm, Khuu Sieu, Suttle Catherine M
School of Optometry and Vision Science, University of New South Wales (UNSW), Sydney, NSW 2052, Australia.
School of Optometry and Vision Science, University of New South Wales (UNSW), Sydney, NSW 2052, Australia.
J Neurosci Methods. 2014 May 15;228:50-6. doi: 10.1016/j.jneumeth.2014.02.012. Epub 2014 Mar 20.
Current methods to measure eye-hand coordination (EHC) have been widely applied in research and practical fields. However, some aspects of the methods, such as subjectivity, high price, portability, and high appraisal contribute to difficulties in EHC testing.
The test was developed on an Apple iPad(®) and involves tracing up to 13 shapes with a stylus pen. The time taken to complete each trace and the spatial accuracy of the tracing is automatically recorded. The difficulty level for each shape was evaluated theoretically based on the complexity and length of outline. Ten adults aged 31.5±7.8 years and five children aged 9.4±1.1 years with normal vision participated.
In adults, the time taken to trace and number of errors significantly decreased from the first to the second attempt (p<0.05) but not thereafter, suggesting a learning effect with repeatability after a practice attempt. Time taken and number of errors in children were both higher in monocular than binocular viewing conditions (p=0.02 and p<0.01, respectively) while adults' performance was similar in both viewing conditions.
Existing EHC tests are subjective in clinics and require higher skills and cost in research, and measure gross EHC. This novel test has been developed to address some of the limitations.
The test is engaging for children and adults and is an objective method with potential for the assessment of fine EHC, suited to clinic-based and research use in ophthalmic or brain trauma settings, and in developmental disorders.
目前测量眼手协调能力（EHC）的方法已在研究和实践领域广泛应用。然而，这些方法在某些方面，如主观性、高成本、便携性以及高评估难度等，给EHC测试带来了困难。
该测试在苹果iPad（®）上开发，使用触控笔追踪多达13种形状。自动记录完成每次追踪所需的时间以及追踪的空间准确性。根据轮廓的复杂性和长度，从理论上评估每种形状的难度级别。十名年龄在31.5±7.8岁的成年人以及五名年龄在9.4±1.1岁、视力正常的儿童参与了测试。
在成年人中，从第一次尝试到第二次尝试，追踪时间和错误数量显著减少（p<0.05），但此后未再减少，这表明在一次练习尝试后存在学习效应且具有可重复性。在单眼观察条件下，儿童的追踪时间和错误数量均高于双眼观察条件（分别为p=0.02和p<0.01），而成年人在两种观察条件下的表现相似。
现有的EHC测试在临床中具有主观性，在研究中需要更高的技能和成本，并且测量的是总体EHC。开发这种新颖的测试是为了解决一些局限性。
该测试对儿童和成年人都具有吸引力，是一种客观的方法，具有评估精细EHC的潜力，适用于眼科或脑外伤环境以及发育障碍的临床和研究应用。
