Synchronizing movements with an external periodic stimulus, such as tapping your foot along with a metronome, is a remarkable human skill called sensorimotor synchronization. A growing body of literature investigates this process, but experiments require collecting responses with high temporal reliability, which often requires specialized hardware. The current article presents and validates TeensyTap, an inexpensive, highly functional framework with excellent timing performance. The framework uses widely available, low-cost hardware and consists of custom-written open-source software and communication protocols. TeensyTap allows running complete experiments through a graphical user interface and can simultaneously present a pacing signal (metronome), measure movements using a force-sensitive resistor, and deliver auditory feedback, with optional experimenter-specified artificial feedback delays. Movement data is communicated to a computer and saved for offline analysis in a format that allows it to be easily imported into spreadsheet programs. The present work also reports a validation experiment showing that timing performance of TeensyTap is highly accurate, ranking it among the gold standard tools available in the field. Metronome pacing signals are presented with millisecond accuracy, feedback sounds are delivered on average 2 ms following the subjects' taps, and the timing log files produced by the device are unbiased and accurate to within a few milliseconds. The framework allows for a range of experimental questions to be addressed and, since it is open source and transparent, researchers with some technical expertise can easily adapt and extend it to accommodate a host of possible future experiments that have yet to be imagined.

中文翻译：

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感觉运动同步实验的TeensyTap框架。

将运动与外部周期性刺激（例如，用节拍器拍打脚踩脚）同步，是一项非凡的人类技能，称为感觉运动同步。越来越多的文献对此过程进行了研究，但是实验要求收集具有高时间可靠性的响应，而这通常需要专门的硬件。本文介绍并验证了TeensyTap，这是一种廉价的，功能强大的框架，具有出色的计时性能。该框架使用广泛可用的低成本硬件，并包含定制编写的开源软件和通信协议。TeensyTap允许通过图形用户界面进行完整的实验，并可以同时显示起搏信号（节拍器），使用力敏电阻测量运动并提供听觉反馈，具有可选的实验者指定的人工反馈延迟。运动数据被传送到计算机，并以一种可以轻松导入电子表格程序的格式进行保存，以供离线分析。本工作还报告了一项验证实验，该实验表明TeensyTap的计时性能非常准确，在该领域可利用的金标准工具中名列前茅。节拍器的起搏信号以毫秒精度显示，在受试者轻拍后平均2毫秒就发出反馈声音，并且设备产生的定时日志文件无偏差且精确到几毫秒。该框架允许解决一系列实验性问题，并且由于它是开源且透明的，