以往研究发现，疼痛诱发的gamma频段高频振荡信号（gamma band oscillations，GBO）是最能客观反映疼痛程度的特异性生物指标之一(Hu &Iannetti, 2019; Peng et al., 2018)。然而，GBO的神经起源一直以来存在较大争议：有些研究提示，GBO可能来源于初级躯体感觉皮层（primary somatosensory cortex，S1）(Peng et al., 2018; Zhang et al., 2012)，而另一些研究则支持GBO起源于初级运动皮层（primary motor cortex，M1）(Schulz et al., 2012)。值得注意的是，这些研究多借助脑电技术研究GBO的特性，但脑电空间分辨率低，难以明确GBO的脑内神经电生理活动基础。
More and more people are publishing eye-tracking research in open-access journals. This is due, in large part, to the increased number of open-access journals as well as greater interest in publishing research that anyone can use and view without paying for access. For ease and convenience, there …