Su Jing, Duan Dongyuan, Zhang Xuemin, Lei Huanyu, Wang Chundi, Guo Heng, Yan Xiaoqian
Beijing Key Lab of Applied Experimental Psychology, School of Psychology, Beijing Normal University, Beijing, China.
Urban and Environmental Sciences, Northwest University, Xi'an City, Shanxi Province, China.
Neurosci Lett. 2017 Feb 22;641:15-20. doi: 10.1016/j.neulet.2017.01.038. Epub 2017 Jan 19.
Previous studies have revealed that negative emotion may influence participants' cognitive processing. However, the neural mechanism of the impact of negative emotion on dynamic task like Multiple Object Tracking (MOT) is still unknown. This present study used electrophysiological (Event-Related Potentials, ERP) measures to investigate the effect of negative emotion on MOT tasks. Participants were required to complete MOT tasks while detecting the probe dots that would appear on targets, distractors or the space between them during tracking. Results of N2 amplitude showed that the distractor inhibition effect existed only in the neutral emotional picture condition. The P3 amplitude in the parietal area was also modulated by the emotion condition. P3 amplitude in the occipital area showed a target enhancement effect for both the neutral and negative emotion condition. The present study indicates that negative emotion could affect attention resource allocation during MOT.
以往的研究表明，负面情绪可能会影响参与者的认知加工。然而，负面情绪对诸如多目标追踪（MOT）等动态任务影响的神经机制仍不清楚。本研究采用电生理（事件相关电位，ERP）测量方法来探究负面情绪对MOT任务的影响。参与者在完成MOT任务时，需要在追踪过程中检测出会出现在目标、干扰物或它们之间空间位置上的探测点。N2波幅的结果表明，干扰抑制效应仅存在于中性情绪图片条件下。顶叶区域的P3波幅也受到情绪条件的调节。枕叶区域的P3波幅在中性和负面情绪条件下均表现出目标增强效应。本研究表明，负面情绪会影响MOT过程中的注意力资源分配。
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