基于脑电特征的船员抑制功能变化研究  

Study on Cognitive Function Changes of Ocean Crew based on EEG Characteristics

作　　者：袁履凡 谢长勇 YUAN Lvfan;XIE Changyong(School of Health Science and Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;School of Basic Medicine,Naval Medical University,Shanghai 200433,China)

机构地区：[1]上海理工大学健康科学与工程学院,上海200093 [2]海军军医大学基础医学院,上海200433

出　　处：《生物医学工程学进展》2024年第2期123-130,共8页Progress in Biomedical Engineering

基　　金：军委科技委基金项目(21AHY02)。

摘　　要：目的探讨长期处于密闭环境下对船员抑制功能的影响及其神经电生理机制。方法采集受试者完成情绪Stroop色词测验时的行为学数据和脑电数据。从心理和生理的角度比较航行时间长组船员和航行时间短组船员在受到正性、中性、负性情绪诱发后的Stroop效应量和准确率,以及脑电信号功率谱密度。结果和结论在行为指标上,刺激类型主效应显著(F(1,42)=3.331,p=0.041),中性刺激下两组的准确率高于正性、负性刺激;在脑电指标上,两组之间在delta、beta频段呈现出正性、中性和负性情绪诱发下的功率值显著差异;在正性、负性与中性情绪刺激的诱发下,delta、theta和beta频段呈现出功率值显著差异。长期在密闭环境下工作和生活的船员尚未出现显著的行为学抑制功能衰退,但脑电功率出现了区域性的改变,差异主要集中在航行时间长的船员中(77.7%)。文章的创新之处将情绪Stroop范式与功率谱密度相结合来探究长期处于密闭环境下船员的抑制功能变化。Objective Explore the effect of long-term closed environment on crew’s inhibitory function and its neurophysiological mechanism.Methods Behavioral data and EEG data were collected when the subjects completed the emotional Stroop color word test.From the psychological and physiological point of view,this paper compares the Stroop effect and accuracy and the power spectrum density of EEG signals after positive,neutral and negative emotions were induced in the crew of long sailing time group and short sailing time group.Results and Conclusion In behavioral indicators,the main effect of stimulus type is significant(F(1,42)=3.331,p=0.041),and the accuracy of the two groups under neutral stimulus is higher than that under positive and negative stimulus.In terms of EEG indexes,there are significant differences in power values induced by positive,neutral and negative emotions between the two groups in delta and beta bands.Under positive,negative and neutral emotional stimulus,there are significant differences in power values in delta,theta and beta bands.The crew who has been working and living in a closed environment for a long time have not experienced a significant decline in behavioral inhibition,but the brain electric power has changed regionally,and the difference is mainly concentrated in the crew who have been sailing for a long time(77.7%).The innovation of the article Emotional Stroop paradigm and power spectral density are combined to explore the changes of crew’s inhibitory function in long-term closed environment.

关 键 词：情绪Stroop 功率谱密度 抑制功能 

分 类 号：R318[医药卫生—生物医学工程]