论文标题
改进的脑电图采集协议有助于局部神经激活
An Improved EEG Acquisition Protocol Facilitates Localized Neural Activation
论文作者
论文摘要
这项工作提出了通过引入实际的运动运动和/或体感提示来改进电动图像的脑电图记录协议。获得的结果证明了需要受试者在图像试验之后执行运动动作的优势。通过在协议中引入电动机动作,受试者能够执行实际的运动计划,而不仅仅是可视化电动机运动,从而大大提高了可以想象的运动运动的便利性。这项研究还探讨了在该受试者中给予体感提示的额外优势,而不是传统的听觉/视觉提示。协议中的这些变化显示了在应用数据上获得的空间过滤器的适当性,即应用众所周知的常见空间模式(CSP)算法。当协议用体感刺激增强时,空间过滤器突出显示的区域在整个受试者中更加本地化和一致。因此,我们建议这可能被证明是一种更好的脑电图获取方案,用于响应(临床上)瘫痪/锁定患者的预期运动命令来检测脑激活。
This work proposes improvements in the electroencephalogram (EEG) recording protocols for motor imagery through the introduction of actual motor movement and/or somatosensory cues. The results obtained demonstrate the advantage of requiring the subjects to perform motor actions following the trials of imagery. By introducing motor actions in the protocol, the subjects are able to perform actual motor planning, rather than just visualizing the motor movement, thus greatly improving the ease with which the motor movements can be imagined. This study also probes the added advantage of administering somatosensory cues in the subject, as opposed to the conventional auditory/visual cues. These changes in the protocol show promise in terms of the aptness of the spatial filters obtained on the data, on application of the well-known common spatial pattern (CSP) algorithms. The regions highlighted by the spatial filters are more localized and consistent across the subjects when the protocol is augmented with somatosensory stimuli. Hence, we suggest that this may prove to be a better EEG acquisition protocol for detecting brain activation in response to intended motor commands in (clinically) paralyzed/locked-in patients.