Hand posture affects brain-function measures associated with listening to speech
Hand posture affects brain-function measures associated with listening to speech
复制标题
手部姿势影响与听语音相关的大脑功能测量
作者：
K. Tsunoda;Mihiro Takazawa;S. Sekimoto;K. Itoh;T. Baer
从分子到大规模网络水平的大脑研究的一个主要困难是确保结果的准确性和可靠性，因为在使用功能磁共振成像（f-MRI）、近红外光谱（NIRS）和正电子发射断层扫描（PET）的研究中，可重复性一直是一个问题。更普遍的是，一项重复心理学研究的努力表明，只有39%的时间可以明确地重新获得原始结果。有人建议，研究人员必须进行研究，以确定降低可靠性的因素，并进行更仔细的控制研究，以提高可靠性。在我们之前的工作中，我们研究了手/手臂姿势的变化是否会对与任务相关的大脑活动产生混淆效应。在这里，我们展示了一个解决方案，以提高在听力任务的近红外光谱研究的再现性。结果表明，在非静息状态下，交叉姿势与平行姿势在非对称功能连接方面的结果不同。即使当唯一的任务是听语音刺激时，也应该要求参与者将手放在表面上，脚放在地板上，保持相同的稳定姿势，以增加结果的可重复性。为了实现实验结果的准确、可靠和可重复性，稳定的手部姿态是非常重要的。
A major difficulty in studies of the brain, from the molecular to large-scale network level, is ensuring the accuracy and reliability of results, since repeatability has been a problem in studies utilizing functional magnetic resonance imaging (f-MRI) near-infrared spectroscopy (NIRS), and positron-emission tomography (PET). More generally, an effort to replicate psychological studies has shown that the original results were unambiguously reobtained only 39% of the time. It has been suggested that researchers must undertake studies to identify factors that reduce reliability and conduct more carefully controlled studies to improve reliability. In our previous work, we examined whether changes in hand/arm posture can have a confounding effect on task-related brain activity. Here we show a solution to enhance reproducibility in a NIRS study in a hearing task. The results showed that crossed posture can lead to different results than parallel posture with respect to asymmetric functional connectivity, especially during non-resting state. Even when the only task is listening to speech stimuli, participants should be asked to place their hands on a surface and feet on the floor and keep the same stable posture to increase reproducibility of results. To achieve accurate reliability and reproductively of results, stable hand posture through the experiment is important.
影响因子：
3.8
作者：
Rand, Miya K.;Heuer, Herbert
通讯作者：
Heuer, Herbert