EEG From a Single-Channel Dry-Sensor Recording Device
EEG From a Single-Channel Dry-Sensor Recording Device
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DOI：
10.1177/1550059411435857
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发表时间：
2012-04-01
影响因子：
2
通讯作者：
Bruggemann, Jason M.
中科院分区：
文献类型：
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作者：
Johnstone, Stuart J.;Blackman, Russell;Bruggemann, Jason M.
虽然实验室设置和研究级脑电图（EEG）设备允许控制变量和高质量的多通道脑电图记录，但有些情况和人群不适合这样做。本文研究了一种便携式干式传感器单通道脑电图测量新方法的有效性。在研究1中，20名成年受试者在睁眼（EO）和闭眼（EC）休息状态下，同时从便携式设备和4个研究系统的标准EEG电极上记录EEG。在F3站点，在设备上处理的便携式设备数据（r = 0.90）和以标准方式处理的设备数据（r = 0.89）与研究系统频谱的平均相关性最高。此外，观察到EO与EC比较的可预测变化。在研究2中，23名健康儿童在EO和EC休息状态和3名EO活动状态（即放松、注意和认知负荷）时的脑电图由便携式设备记录。不同条件下的绝对和相对EEG频带功率以可预测的方式存在差异，包括与EO静息条件相比，EC的相对θ波功率降低和相对α波功率增加。总的来说，结果表明，尽管在头皮记录位置方面受到限制，但便携式设备在某些优先考虑易用性的EEG记录情况下具有潜在的实用性。
While a laboratory setting and research-grade electroencephalogram (EEG) equipment allow control of variables and high-quality multiple-channel EEG recording, there are situations and populations for which this is not suitable. The present studies examined the validity of a new method of single-channel EEG measurement that is portable and uses dry-sensor technology. In study 1, EEG was recorded simultaneously from the portable device and 4 standard EEG electrodes from a research system, during eyes open (EO) and eyes closed (EC) resting conditions, with 20 adult participants. Average correlations with the research system frequency spectra were highest at site F3 for portable device data processed onboard of the device (r = .90), and for device data processed in a standard manner (r = .89). Further, predictable variations in EO versus EC comparisons were observed. In study 2, twenty-three healthy children had EEGs recorded from the portable device during EO and EC resting conditions, and 3 EO active conditions (ie, relaxation, attention, and cognitive load). Absolute and relative EEG band power differed between conditions in predicted ways, including a reduction in relative theta power and an increase in relative alpha power in EC compared to EO resting conditions. Overall, the results suggest that, while limited in terms of scalp recording locations, the portable device has potential utility in certain EEG recording situations where ease of use is a priority.