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Overt and covert attention shifts to emotional faces: Combining EEG, eye tracking, and a go/no-go paradigm
Psychophysiology ( IF 3.7 ) Pub Date : 2021-05-13 , DOI: 10.1111/psyp.13838
Louisa Kulke 1, 2, 3 , Lena Brümmer 1 , Arezoo Pooresmaeili 3, 4 , Annekathrin Schacht 1, 3
Affiliation  

In everyday life, faces with emotional expressions quickly attract attention and eye movements. To study the neural mechanisms of such emotion-driven attention by means of event-related brain potentials (ERPs), tasks that employ covert shifts of attention are commonly used, in which participants need to inhibit natural eye movements towards stimuli. It remains, however, unclear how shifts of attention to emotional faces with and without eye movements differ from each other. The current preregistered study aimed to investigate neural differences between covert and overt emotion-driven attention. We combined eye tracking with measurements of ERPs to compare shifts of attention to faces with happy, angry, or neutral expressions when eye movements were either executed (go conditions) or withheld (no-go conditions). Happy and angry faces led to larger EPN amplitudes, shorter latencies of the P1 component, and faster saccades, suggesting that emotional expressions significantly affected shifts of attention. Several ERPs (N170, EPN, LPC) were augmented in amplitude when attention was shifted with an eye movement, indicating an enhanced neural processing of faces if eye movements had to be executed together with a reallocation of attention. However, the modulation of ERPs by facial expressions did not differ between the go and no-go conditions, suggesting that emotional content enhances both covert and overt shifts of attention. In summary, our results indicate that overt and covert attention shifts differ but are comparably affected by emotional content.

中文翻译:

显性和隐性注意力转移到情绪化面孔:结合脑电图、眼动追踪和通过/不通过范式

在日常生活中,带有情绪表情的面孔会迅速吸引注意力和眼球运动。为了通过事件相关的脑电位 (ERP) 研究这种情绪驱动的注意力的神经机制,通常使用采用隐蔽注意力转移的任务,其中参与者需要抑制对刺激的自然眼球运动。然而,目前还不清楚有和没有眼球运动的情绪面孔的注意力转移有何不同。目前的预注册研究旨在调查隐性显性之间的神经差异情绪驱动的注意力。我们将眼动追踪与 ERP 的测量相结合,以比较在眼球运动被执行(通过条件)或被抑制(不通过条件)时对具有快乐、愤怒或中性表情的面部的注意力转移。快乐和愤怒的面孔导致更大的 EPN 振幅、更短的 P1 组件延迟和更快的眼跳,这表明情绪表达显着影响注意力的转移。当注意力随着眼球运动而转移时,几个 ERP(N170、EPN、LPC)的幅度会增加,这表明如果眼球运动必须与注意力的重新分配一起执行,则面部的神经处理会增强。然而,面部表情对 ERP 的调制在 go 和 no-go 条件之间没有差异,表明情感内容增强了注意力的隐蔽和公开转移。总之,我们的结果表明,明显和隐蔽的注意力转移不同,但受情绪内容的影响相当。
更新日期:2021-07-16
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