Effects of acute high altitude hypoxia on EEG power in different emotional states

doi:10.12047/j.cjap.5978.2020.117

Abstract

Abstract: Objective: To investigate the effects of acute high altitude hypoxia on EEG power in different emotional states. Methods: This study was two-factor within-subject design (2 levels of oxygen environment ×4 levels of emotion type). Twelve male subjects aged between 20 and 25 years old were induced to produce four different types of emotions by emotional picture evoked paradigm: low valence and low arousal(LVLA), high valence and low arousal(HVLA), low valence and high arousal(LVHA), high valence and high arousal(HVHA). Brain Products 32 was used to collect EEG signals under different emotional states. The next day, a constant depressed oxygen chamber was used to simulate a 4 300 m plateau hypoxia environment, and the same group of subjects used the same experimental paradigm to collect EEG signals 10h after hypoxia. The collected EEG signals were analyzed by power spectrum (FFT), and the five frequency bands (Delta, Theta, Alpha, beta, gamma) of the frontal lobe (F3\Fz\F4) were analyzed by variance analysis of two-factor repeated measurements. Results: FFT analysis found that before and after acute hypoxia, the whole brain distribution of alpha wave in four emotional states was mainly concentrated in frontal and parietal leaves; the distribution of alpha wave in the whole brain was the least in relaxed emotional state. The results of the two-factor repeated measurement ANOVA showed that: ①the power of delta\ beta band was significantly affected by the oxygen environment(P＜0.05), and the power was enhanced under hypoxia. ②The power index of theta\ alpha band showed a significant interaction between the oxygen environment and emotional types(P＜0.05). Except for the HVLA emotional state, the power of theta alpha band was significantly enhanced under hypoxia. ③ The two factors had no significant influence on the gamma band(P＞0.05). Conclusion: Under the four kinds of emotional states, the difference of the influence of oxygen environment on brain activity was mainly in the frontal lobe, parietal lobe and part of temporal lobe. Of the four types of emotions, the oxygen environment had the least significant effect on brain activity in HVLA emotional states, while the rest showed significant differences.

Key words: hypoxia, emotion, EEG power

CLC Number:

B845

CHEN Zhen, ZHANG Guang-bo, ZHOU Di, CHENG Xiang, ZHU Ling-ling, FAN Ming, WANG Du-ming, ZHAO Yong-qi. Effects of acute high altitude hypoxia on EEG power in different emotional states[J]. CJAP, 2020, 36(6): 556-561.

References

[1] 康琳, 李小明, 肖伟宏. 新疆不同海拔高原边防军人心理健康状况调查分析[J]. 中国健康教育, 2013, 29(7): 634-653.
[2] 杨国愉, 冯正直, 秦爱粉, 等. 高原训练期间军人认知功能的追踪研究[J]. 医学争鸣, 2005, 26(3): 272-275.
[3] 朱玲玲, 范明. 高原缺氧对人认知功能的影响及干预措施[J]. 中国药理学与毒理学杂志, 2017, 31(11): 1114-1119.
[4] 杨国愉, 冯正直, 汪涛, 等. 高原缺氧对心理功能的影响及防护[J]. 中华行为医学与脑科学杂志, 2003, 12(4): 471-473.
[5] 刘红平, 杨国愉, 张晶轩. 急进高原驻训军人正负性情绪变化特点与人格特征的关系[J]. 第三军医大学学报, 2017, 39(21): 2145-2150.
[6] 胡光涛, 陈许波, 杨柳. 高原驻训军人抑郁情绪与心理应激、心理弹性的相关性[J]. 西南国防医药, 2019, 29(4): 83-85.
[7] 徐媛媛, 谢守蓉, 李丽, 等. 情绪调节方式在军人幸福感促进心理健康中的作用[J]. 第三军医大学学报, 2017, 39(15): 1520-1524.
[8] Siedlecka E, Denson TF. Experimental methods for inducing basic emotions: A qualitative review[J]. EMOT REV, 2019, 11(1): 87-97.
[9] 刘潇楠, 许翱翔, 周仁来. 国际情绪图片系统的本土化研究:在中国大学生群体中的评定[J]. 中国临床心理学杂志, 2009, 17(6): 687-689.
[10] Petrantonakis PC, Hadjileontiadis LJ. A novel emotion elicitation index using frontal brain asymmetry for enhanced eeg-based emotion recognition[J]. IEEE Trans Inf Technol Biomed, 2011, 15(5): 737-746.
[11] Davidson RJ, Ekman P, Saron CD, et al. Approach-withdrawal and cerebralasymmetry: emotional expression and brain physiology I[J]. J Pers Social Psychol, 1990, 58(2): 330-341.
[12] 王宁, 魏玲, 李颖洁. 基于格兰杰因果分析情绪认知过程中alpha脑电特性[J]. 生物医学工程学杂志, 2012, 29(6): 1021-1026.
[13] Zhao JP, Ran Z, Qian Y, et al. Characteristics of eeg activity during high altitude hypoxia and lowland reoxygenation[J]. Brain Res, 2016,1648(Pt A): 243-249.
[14] Ahern GL, Schwartz GE. Differential lateralization for positive and negative emotion in the human brain: Eeg spectral analysis[J]. Neuropsychologia, 1985, 23(6): 745-755.
[15] Saletu B, Grünberger J, Linzmayer L, et al. Brain protection of nicergoline against hypoxia: Eeg brain mapping and psychometry[J]. J Neural Transm, 1990, 2(4): 305-325.
[16] 刘冰, 韩布新, 安心. 急性高原低氧对静息态脑电功率的影响研究进展[J]. 中国全科医学, 2017, 20(29): 3683-3688.
[17] Feddersen B, Neupane P, Thanbichler F, et al. Regional differences in the cerebral blood flow velocity response to hypobaric hypoxia at high altitudes[J]. J Cerebr Blood F Met, 2015, 35(11): 1846.
[18] Ozaki H, Watanabe S, Suzuki H. Topographic eeg changes due to hypobaric hypoxia at simulated high altitude[J]. Electroen Clin Neuro, 1995, 94(5): 349-356.
[19] Thomas B, Michaela E, Lutz JN. From emotion perception to emotion experience: Emotions evoked by pictures and classical music[J]. Int J Psychophysiol, 2006, 60(1): 40-43.
[20] Bradley BP, Mogg K, Lee SC. Attentional biases for negative information in induced and naturally occurring dysphoria[J]. Behav Res Ther, 1997, 35(10): 911-927.