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首页> 外文期刊>Journal of Neuroscience Methods >Force sensing system for automated assessment of motor performance during fMRI.
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Force sensing system for automated assessment of motor performance during fMRI.

机译：力感测系统，用于在fMRI期间自动评估运动表现。

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摘要

Finger tapping sequences are a commonly used measure of motor learning in functional imaging studies. Subjects repeat a defined sequence of finger taps as fast as possible for a set period of time. The number of sequences completed per unit time is the measure of performance. Assessment of speed and accuracy is generally accomplished by video recording the session then replaying in slow motion to assess rate and accuracy. This is a time consuming and error prone process. Keyboards and instrumented gloves have also been used for task assessment though they are relatively expensive and not usually compatible in a magnetic resonance imaging (MRI) scanner. To address these problems, we developed a low cost system using MRI compatible force sensitive resistors (FSR) to assess the performance during a finger sequence task. This system additionally provides information on finger coordination including time between sequences, intervals between taps, and tap duration. The method was validated by comparing the FSR system results with results obtained by video analysis during the same session.
机译：手指敲击序列是功能成像研究中运动学习的常用量度。受试者在设定的时间内尽可能快地重复定义的手指轻击序列。每单位时间完成的序列数是性能的度量。速度和准确性的评估通常是通过视频记录会话，然后以慢动作重播来评估速度和准确性来完成的。这是一个耗时且容易出错的过程。键盘和带手套的手套也已经用于任务评估，尽管它们比较昂贵并且通常在磁共振成像（MRI）扫描仪中不兼容。为了解决这些问题，我们开发了一种低成本系统，该系统使用MRI兼容的力敏电阻（FSR）来评估手指序列任务期间的性能。该系统还提供有关手指协调的信息，包括序列之间的时间，敲击之间的间隔以及敲击持续时间。通过将FSR系统结果与同一会话中通过视频分析获得的结果进行比较，验证了该方法的有效性。

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