Effect of Object and Task Properties on Bimanual Transport

Effect of Object and Task Properties on Bimanual Transport
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对象和任务属性对双手传输的影响

DOI:
10.1080/00222895.2018.1465391
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发表时间:
2018
影响因子:
1.4
通讯作者:
Pollard, Nancy S.
Pollard, Nancy S.
中科院分区:
心理学4区
文献类型:
--
作者:
Nakamura, Yuzuko C.;O'Sullivan, Carol A.;Pollard, Nancy S.

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在操作物体时同时使用双手相当普遍,但尚不清楚是什么因素鼓励人们在运输等简单任务中使用两只手而不是一只手。我们特别对三种可能的运输策略感兴趣:单手运输、双手交接和对称双手运输。在本研究中,我们研究了物体大小、重量、起始和结束位置(配置)的影响,以及平衡物体的需要对在碗移动任务中使用这三种策略的影响。我们发现配置和平衡对策略选择有很强的影响,而大小和重量的影响较弱。当任务需要从左到右移动物体时,最常使用切换,反之亦然,而当从前到后传递时,经常使用单手动策略。双手策略仅受配置影响很小。平衡物体的需要导致受试者更喜欢单手和双手策略而不是交接策略。此外,对运输持续时间和身体旋转的分析表明,策略选择可能是由最小化身体旋转的愿望驱动的。
The use of both hands simultaneously when manipulating objects is fairly commonplace, but it is not known what factors encourage people to use two hands as opposed to one during simple tasks such as transport. In particular, we are interested in three possible transport strategies: unimanual transport, handing off between hands, and symmetric bimanual transport. In this study, we investigate the effect of object size, weight, and starting and ending position (configuration) as well as the need to balance the object on the use of these three strategies in a bowl-moving task. We find that configuration and balance have a strong effect on choice of strategy, and size and weight have a weaker effect. Hand-offs are most often used when the task requires moving an object from left to right and vice versa, while the unimanual strategy was frequently used when passing front to back. The bimanual strategy is only weakly affected by configuration. The need to balance an object causes subjects to favor unimanual and bimanual strategies over the hand-off. In addition, an analysis of transport duration and body rotation suggests that strategy choice may be driven by the desire to minimize body rotation.
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