ERPs responses to dominance features from human faces

Chengguo Miao, Xiaojun Li, Edmund Derrington, Frederic Moisan (), Yansong Li and Jean-Claude Dreher
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Frederic Moisan: EM - EMLyon Business School

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Abstract: "Social dominance is an important feature of social life. Dominance has been proposed to be one of two trait dimensions underpinning social judgments of human faces. Yet, the neural bases of the ability to identify different dominance levels in others based on intrinsically facial cues remains poorly understood. Here, we used event-related potentials to determine the temporal dynamics of facial dominance evaluation based on facial features signaling physical strength/weakness in humans. Twenty-seven participants performed a dominance perception task where they passively viewed faces with different dominance levels. Dominance levels did not modulate an early component of face processing, known as the N170 component, but did modulate the late positive potential (LPP) component. These findings indicate that participants inferred dominance levels at a late stage of face evaluation. Furthermore, the highest level of dominant faces and the lowest level of submissive faces both elicited higher LPP amplitudes than faces with a neutral dominance level. Taken together, the present study provides new insights regarding the dynamics of the neurocognitive processes underlying facial dominance evaluation."

Date: 2022-12-02
New Economics Papers: this item is included in nep-neu
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Published in Scientific Reports, 2022, 12, 9 p

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