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Journal Article

The impact of emotional facial expressions on reflexive attention depends on the aim of dynamic gaze changes: An ERP study

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Stephani,  Tilman       
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
International Max Planck Research School on Neuroscience of Communication: Function, Structure, and Plasticity, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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BagherzadehAzbari_2022.pdf
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BagherzadehAzbari_2022_Suppl.docx
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Citation

Bagherzadeh‐Azbari, S., Lion, C. J., Stephani, T., Dimigen, O., & Sommer, W. (2023). The impact of emotional facial expressions on reflexive attention depends on the aim of dynamic gaze changes: An ERP study. Psychophysiology, 60(4): e14202. doi:10.1111/psyp.14202.


Cite as: https://hdl.handle.net/21.11116/0000-000B-6406-E
Abstract
The emotional expression and gaze direction of a face are important cues for human social interactions. However, the interplay of these factors and their neural correlates are only partially understood. In the current study, we investigated ERP correlates of gaze and emotion processing following the initial presentation of faces with different emotional expressions (happy, neutral, angry) and an averted or direct gaze direction as well as following a subsequent change in gaze direction that occurred in half of the trials. We focused on the time course and scalp topography of the N170 and EPN components. The N170 amplitude was larger to averted than direct gaze for the initial face presentation and larger to gaze changes from direct to averted than from averted to direct in response to the gaze change. For the EPN component in response to the initial face presentation, we replicate classic effects of emotion, which did not interact with gaze direction. As a major new finding, changes from direct to averted gaze elicited an EPN-like effect when the face showed a happy expression. No such effect was seen for angry expressions. We conclude that happy faces reflexively attract attention when they look at the observer rather than away from the observer. These results for happy expressions are in line with the shared signal hypothesis that posits a better processing of expressions if their approach or avoidance tendency is consistent with gaze direction. However, the shared signal hypothesis is not supported by the present results for angry faces.