Unobtrusive and Multimodal Wearable Sensing to Quantify Anxiety
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摘要This paper aims to develop an objective index for anxiety based on features derived from electroencephalogram (EEG) and photoplethysmogram (PPG) collected from wearable headset and glasses. The 20 subjects were asked to ride at his most comfortable speed in Task 1 and ride while imagining competing with another person in Task 2. A Competitive State Anxiety Inventory-2 questionnaire was conducted before each task to evaluate the anxiety level of each participant. Various features were extracted from EEG and PPG. The results of this paper showed that the mean value and average power of alpha band wavelet coefficients and that of beta band are highly correlated with the anxiety level (r = -0.49 and -0.58, p < 0.01 for alpha band, and r = -0.51 and -0.58, p < 0.01 for beta band, respectively). Features extracted from partial autocorrelation of EEG showed moderate correlation with the anxiety level. Mean pulse rate also acts as a potential anxiety marker for individualized anxiety measurement. Using both EEG and PPG features, the classification accuracy of three-level anxiety by principle component analysis and k-nearest neighbors can achieve 62.5% across subjects. To conclude, wearable sensors have the potential to be used for assessing anxiety level objectively and unobtrusively to facilitate on-site sports performance enhancement and mental-stress-related studies.
著者Zheng YL, Wong TCH, Leung BHK, Poon CCY
期刊名稱IEEE Sensors Journal
出版年份2016
月份5
日期15
卷號16
期次10
出版社IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
頁次3689 - 3696
國際標準期刊號1530-437X
電子國際標準期刊號1558-1748
語言英式英語
關鍵詞body sensor network; electroencephalogram; photoplethysmogram; quantified self; sports performance; unobtrusive sensing; Wearable sensors
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; Instruments & Instrumentation; Physics; Physics, Applied

上次更新時間 2020-14-10 於 00:30