Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task
Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task
复制标题
在节拍器同步任务中以均匀变化的速度弹跳球
DOI：
10.3791/56205
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发表时间：
2017-09-01
影响因子：
1.2
通讯作者：
Wu, Xiang
中科院分区：
文献类型：
--
作者：
Huang, Yingyu;Gu, Li;Wu, Xiang
感觉运动同步(SMS)是人类协调运动和外部节奏的一种基本能力，长期以来一直被认为是特定于形态的。在标准的节拍器同步任务中，需要轻敲手指和同步序列，一个公认的发现是，与由听觉音调组成的听觉序列的同步比与由视觉闪光组成的视觉序列的同步要稳定得多。然而，最近的研究表明，与视觉闪光相比，周期性移动的视觉刺激可以显著提高同步性。特别是，人们发现，速度均匀变化的视觉弹跳球的同步并不比听觉音调的同步更稳定。这里，当前的协议描述了均匀变化速度的弹跳球在节拍器同步任务中的应用。包括在具有不同起效间隔(IOI)的序列中弹跳球的使用。与听觉音调和视觉闪光的性能相比，具有代表性的结果说明了弹跳球的同步性能。鉴于其与听觉音调的同步性能相当，弹跳球对于解决当前的研究主题--特定通道机制是否构成短信的基础--具有特别重要的意义。
Sensorimotor synchronization (SMS), a fundamental human ability to coordinate movements with external rhythms, has long been thought to be modality specific. In the canonical metronome synchronization task that requires tapping a finger along with an isochronous sequence, a well-established finding is that synchronization is much more stable to an auditory sequence consisting of auditory tones than to a visual sequence consisting of visual flashes. However, recent studies have shown that periodically moving visual stimuli can substantially improve synchronization compared with visual flashes. In particular, synchronization of a visual bouncing ball that has a uniformly varying velocity was found to be not less stable than synchronization of auditory tones. Here, the current protocol describes the application of the bouncing ball with a uniformly varying velocity in a metronome synchronization task. The usage of the bouncing ball in sequences with different inter-onset intervals (IOI) is included. The representative results illustrate synchronization performance of the bouncing ball, as compared with the performances of auditory tones and visual flashes. Given its comparable synchronization performance to that of auditory tones, the bouncing ball is of particular importance for addressing the current research topic of whether modality-specific mechanisms underlay SMS.