气候变化领域集成服务门户(CCPortal): Neurodynamics of Awareness Detection in Tibetan Immigrants: Evidence from Electroencephalography Analysis

CCPortal

DOI	10.1016/j.neuroscience.2023.04.025
	Neurodynamics of Awareness Detection in Tibetan Immigrants: Evidence from Electroencephalography Analysis
	Yu, Si-Fang; Wang, Nian -Nian; Hu, Quan-ling; Dang, Peng; Chang, Shuai; Huang, Xiao-Yan; Su, Rui; Li, Hao; Zhou, Jing; Ma, Hai-Lin; Liu, Ming; Zhang, De-Long
发表日期	2023
ISSN	0306-4522
EISSN	1873-7544
起始页码	69
结束页码	80
卷号	522
英文摘要	psychological effects of long-term exposure to high-altitude environments have attracted great attention. These effects are usually attributed to the diminished cognitive resources due to high-altitude exposure. This study employed electroencephalography (EEG) to investigate the effects of exposure duration on awareness detection tasks. Neither reaction time nor accuracy showed the direct effects of the exposure duration, so did the model indexes obtained from drift diffusion model analysis. However, event-related potentials (ERP) analysis revealed that exposure duration was associated with changes in the visual awareness negativity (VAN) and the late positivity (LP) components, which in turn affected reaction time. Specifically, longer exposure durations were associated with lower VAN and higher LP, resulting in shorter reaction times and greater drift rate. In contrast to previous studies, the reverse relationship between VAN and LP may reflect a compensatory response to the reduced cognitive resources caused by high-altitude exposure. Additionally, increased LP and shorter reaction times with exposure duration may reflect a resistance to the high-altitude environment. We also conducted time-frequency analysis and found that theta power did not vary with exposure duration, suggesting that the reduction in cognitive resources remains stable in these individuals over time. Overall, our study provides new insights into the dynamic effects of high-altitude environments on awareness detection in the presence of reduced cognitive resources.& COPY; 2023 IBRO. Published by Elsevier Ltd. All rights reserved.
关键词	high altitudes awareness detection event-related potentials time-frequency analysis
英文关键词	PERCEPTUAL DECISION-MAKING; HIGH-ALTITUDE EXPOSURE; VISUAL AWARENESS; REACTION-TIME; CLIMB; MOOD; ERP; ACCUMULATION; PERFORMANCE; DYNAMICS
WOS研究方向	Neurosciences
WOS记录号	WOS:001013054400001
来源期刊	NEUROSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283709
作者单位	South China Normal University; Tibet University; South China Normal University; Tibet University; South China Normal University
推荐引用方式 GB/T 7714	Yu, Si-Fang,Wang, Nian -Nian,Hu, Quan-ling,et al. Neurodynamics of Awareness Detection in Tibetan Immigrants: Evidence from Electroencephalography Analysis[J],2023,522.
APA	Yu, Si-Fang.,Wang, Nian -Nian.,Hu, Quan-ling.,Dang, Peng.,Chang, Shuai.,...&Zhang, De-Long.(2023).Neurodynamics of Awareness Detection in Tibetan Immigrants: Evidence from Electroencephalography Analysis.NEUROSCIENCE,522.
MLA	Yu, Si-Fang,et al."Neurodynamics of Awareness Detection in Tibetan Immigrants: Evidence from Electroencephalography Analysis".NEUROSCIENCE 522(2023).