Force asymmetry deteriorates complementary force production during joint action
Force asymmetry deteriorates complementary force production during joint action
复制标题
力的不对称会恶化联合行动期间互补力的产生
DOI：
10.1007/s00221-019-05555-6
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发表时间：
2019
影响因子：
2
通讯作者：
Inui Nobuyuki
中科院分区：
文献类型：
--
作者：
Masumoto Junya;Inui Nobuyuki
本研究旨在确定力量不对称对人际力量产生的影响。本研究包括一个单独的任务由一个参与者在一对中同时执行，三个联合任务由两个参与者在1:1,1:0.75和1:0.5的条件下同时执行。两个个体同时产生离散的力，因此他们产生的力的总和就是联合任务中的目标力。在1:1条件下，目标力为每位参与者食指产生的最大自主收缩力（MVC）之和× 0.1 （10% MVC）。在1:0.75的条件下，研究人员只操纵其中一个产生的力，例如B，而不是a。结果，反馈也被扩展了。目标力为参与者a的MVC +参与者b的MVC × 0.75 × 0.1。同样，1:0.5条件下的目标力为参与者a的MVC +参与者b的MVC × 0.5 × 0.1。本研究发现，配对产生的力呈负相关，且1:1条件下的相关值高于1:0.75和1:0.5条件下的相关值。1:1条件下的绝对误差小于1:0.5条件下的绝对误差。当两个参与者产生的力之间的差异增加时，互补力产生减弱，误差增加。因此，对产生的力量的不对称性恶化了互补力量的产生和人际关系的表现。
The present study aimed to determine the effects of force asymmetry on interpersonal force production. This study consisted of an individual task executed by one participant at a time in a pair, and three joint tasks executed by two participants simultaneously under conditions of 1:1, 1:0.75, and 1:0.5. Two individuals produced discrete forces at the same time so that the sum of forces they produced was the target force in the joint task. Under the 1:1 condition, the target force was the sum of the maximum voluntary contraction (MVC) produced by the index finger of each participant × 0.1 (10% MVC). Under the 1:0.75 condition, the investigators manipulated the force produced by only one of the pair, for example,B, but notA. The feedback was also scaled as a result. The target force was the MVC of participantA+ the MVC of participantB× 0.75 × 0.1. Similarly, the target force under the 1:0.5 condition was the MVC of participantA+ the MVC of participantB× 0.5 × 0.1. The present study found that forces produced by pairs were negatively correlated and the correlation value was higher under the 1:1 condition than the 1:0.75 and 1:0.5 conditions. The absolute error was smaller under the 1:1 condition than the 1:0.5 condition. Complementary force production was attenuated and the error increased as differences between forces produced by two participants increased. Thus, asymmetry of forces produced by pairs deteriorated complementary force production and interpersonal performance.
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影响因子：
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作者：
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DOI：
--
发表时间：
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期刊：
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