摘要
噪声作为一种广泛发生的负性事件,可引起焦虑情绪,导致注意力分散,从而影响人的工作绩效。本文首先通过状态-特质问卷筛选出符合要求的高焦质和低焦质两组被试,然后设置噪声水平为安静(<30dB)、50dB和70dB三组白噪声。基于E-Prime设计实验任务并记录事件相关电位(ERP),利用双因素方差分析对P300波幅和绩效数据进行处理。结果表明,焦虑水平、噪声水平及其交互作用对错误数和反应时均没有显著影响;安静时,高焦质组P300波幅显著高于低焦质组;两组被试的P300波幅随着噪声程度的增加呈下降趋势,但不具有显著性差异。
Noise is a pervasive negative events,which can induce anxiety and result in the distraction of attention.In this article,two groups,such as high trait anxiety group(HTA)and low trait anxiety group(LTA)are defined according to state-trait questionnaire.The intensity of white noise in the experiment includes quiet(<30dB),50dB and 70dB.Design the task and present it with E-Prime,and then record the EPR when subjects perform the task.The two-factor analysis of variance is used to deal with behavioral data and the amplitude of P300.The results show that anxiety level,noise level and their interaction have no significant effect on the number of errors and reaction time.the amplitude of P300 for HTA is significantly higher than that for LTA under quiet condition.The P300 amplitude of the two groups of subjects shows a downward trend with the increase of the noise level,but there is no significant difference.
作者
包佳仪
梅梦琪
白银杰
BAO Jiayi;MEI Mengqi;BAI Yinjie(School of Biological Science and Medical Engineering,Beihang University,Beijing,100191 China)
出处
《科技创新导报》
2021年第22期171-174,182,共5页
Science and Technology Innovation Herald
