Development of time sensitivity: Duration ratios in time bisection
Development of time sensitivity: Duration ratios in time bisection
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DOI：
10.1080/17470218.2012.712148
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发表时间：
2013-04-01
影响因子：
1.7
通讯作者：
Zelanti, Pierre
中科院分区：
文献类型：
--
作者：
Droit-Volet, Sylvie;Zelanti, Pierre
本研究探讨了儿童的能力，以区分持续时间的函数，他们的比率的发展，并研究是否有能力区分持续时间，不同的一个非常困难的比例是有关的发展的注意力。5岁和8岁的儿童，以及成年人，进行了一系列的时间平分任务的比例之间的短期和长期的锚持续时间，改变控制任务的难度（5：6，2：3，1：2）在两个持续时间范围（3秒）。此外，他们还完成了神经心理学测试，以评估他们的短期记忆，工作记忆和视觉注意力能力。结果表明，在2：3和1：2的比例下，大多数被试能够区分二等分中的锚持续时间。然而，无论持续时间范围如何，随着锚持续时间之间的距离增加和年龄的增加，他们对时间的敏感性都有所改善。对于最小的持续时间比（5：6），很少有儿童能够区分锚的持续时间在平分任务相比，成人。对神经心理学测试进行的分层回归分析显示，对于锚持续时间之间的2：3比例，参与者的视觉注意力分数解释了时间敏感性的很大一部分差异。儿童的时间敏感度较低可能是由于他们有限的视觉注意能力，从而解释了他们在区分非常接近的持续时间（5：6）时遇到的困难。
This study investigated the development of children's abilities to discriminate durations as a function of their ratio and examined whether the ability to discriminate durations that differed by a very difficult ratio is related to the development of attention capacities. Children aged 5 and 8 years, as well as adults, performed a series of temporal bisection tasks with a ratio between the short and the long anchor duration that was changed to control the difficulty of the task (5:6, 2:3, and 1:2) in two duration ranges (3 s). In addition, they completed neuropsychological tests in order to assess their short-term memory, working memory, and visual attention abilities. The results showed that, at ratios of 2:3 and 1:2, most participants were able to discriminate the anchor durations in bisection. However, their sensitivity to time improved, whatever the duration range, both as the distance between the anchor durations increased and with increasing age. For the smallest duration ratio (5:6), few of the children were able to discriminate the anchor durations in the bisection task in comparison to adults. Hierarchical regression analyses performed on the neuropsychological tests revealed that, for the 2:3 ratio between anchor durations, the participants' visual attention scores explained a large part of the variance in time sensitivity. The children's lower temporal sensitivity was probably due to their limited visual attention abilities, thus explaining the difficulty they experienced in discriminating very close durations (5:6).