Ear-EEG sensitivity modeling for neural sources and ocular artifacts.
Ear-EEG sensitivity modeling for neural sources and ocular artifacts.
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DOI：
10.3389/fnins.2022.997377
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发表时间：
2022
影响因子：
4.3
通讯作者：
Mandic, Danilo P.
中科院分区：
文献类型：
--
作者：
Yarici, Metin C.;Thornton, Mike;Mandic, Danilo P.
耳脑电图已经成为现实世界可穿戴大脑监测的一个有前途的候选者。虽然实验研究已经验证了耳朵-EEG的几种应用，但大脑表面神经源的源-传感器关系尚未建立。此外，仍然缺少耳EEG对伪影来源的敏感性的建模。通过体积导体建模，耳朵EEG的各种配置的灵敏度建立了一系列的神经源，除了眨眼，垂直扫视，和水平扫视眼球运动的眼伪影源。结果最终支持将耳EEG引入常规EEG范式，用于监测源自颞叶内的神经活动，同时还揭示了耳EEG可用于远离这些区域的来源的程度。通过演示耳EEG的各种配置中的伪影和神经信号的比例缩放，还支持在容易出现眼伪影的情况下使用耳EEG。这项研究的结果可以用来支持现有的和前瞻性的实验耳脑电图研究和应用的敏感性的背景下，神经源和眼伪影。
The ear-EEG has emerged as a promising candidate for real-world wearable brain monitoring. While experimental studies have validated several applications of ear-EEG, the source-sensor relationship for neural sources from across the brain surface has not yet been established. In addition, modeling of the ear-EEG sensitivity to sources of artifacts is still missing. Through volume conductor modeling, the sensitivity of various configurations of ear-EEG is established for a range of neural sources, in addition to ocular artifact sources for the blink, vertical saccade, and horizontal saccade eye movements. Results conclusively support the introduction of ear-EEG into conventional EEG paradigms for monitoring neural activity that originates from within the temporal lobes, while also revealing the extent to which ear-EEG can be used for sources further away from these regions. The use of ear-EEG in scenarios prone to ocular artifacts is also supported, through the demonstration of proportional scaling of artifacts and neural signals in various configurations of ear-EEG. The results from this study can be used to support both existing and prospective experimental ear-EEG studies and applications in the context of sensitivity to both neural sources and ocular artifacts.
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