Cue properties change timing strategies in group movement synchronisation.
Cue properties change timing strategies in group movement synchronisation.
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DOI：
10.1038/srep19439
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发表时间：
2016-01-19
影响因子：
4.6
通讯作者：
Wing AM
中科院分区：
文献类型：
--
作者：
Honisch JJ;Elliott MT;Jacoby N;Wing AM
为了保持群体活动的同步性，群体中的每个人都必须不断纠正自己的动作，以便与可用的时间线索保持同步。线索可能来自群体中的一个或多个成员。目前的研究表明，当同步动作时，个体在最大限度地减少外部线索和自己动作之间的时间误差（时间误差）的变化方面优化了自己的表现。然而，这样做的代价是增加了他们自己运动的时间可变性。在这里，我们调查是否一个人的时间策略的变化，根据任务，在一组的情况下。为了研究这一点，我们采用了一种新的范式，将六个人放置在一个圆圈的圆周上，形成两条具有共同起点和终点的链。我们发现，只有一个成员提供时间线索的参与者使用一种策略来最大限度地减少他们的时间差异。相比之下，参与者在两个链的共同终端，谁被要求整合两个成员的时间线索，使用的策略，最大限度地减少运动的变化。我们的结论是，人类能够灵活地切换计时策略，以保持任务的需求，从而优化他们的动作的时间性能。
To maintain synchrony in group activities, each individual within the group must continuously correct their movements to remain in time with the temporal cues available. Cues might originate from one or more members of the group. Current research suggests that when synchronising movements, individuals optimise their performance in terms of minimising variability of timing errors (asynchronies) between external cues and their own movements. However, the cost of this is an increase in the timing variability of their own movements. Here we investigate whether an individual’s timing strategy changes according to the task, in a group scenario. To investigate this, we employed a novel paradigm that positioned six individuals to form two chains with common origin and termination on the circumference of a circle. We found that participants with access to timing cues from only one other member used a strategy to minimise their asynchrony variance. In contrast, the participant at the common termination of the two chains, who was required to integrate timing cues from two members, used a strategy that minimised movement variability. We conclude that humans are able to flexibly switch timekeeping strategies to maintain task demands and thus optimise the temporal performance of their movements.