Shared Attention Amplifies the Neural Processing of Emotional Faces

Author:

Schiano Lomoriello Arianna1ORCID,Sessa Paola23,Doro Mattia2,Konvalinka Ivana1

Affiliation:

1. Technical University of Denmark

2. University of Padova

3. Padova Neuroscience Center

Abstract

Abstract Sharing an experience, without communicating, affects people's subjective perception of the experience, often by intensifying it. We investigated the neural mechanisms underlying shared attention by implementing an EEG study where participants attended to and rated the intensity of emotional faces, simultaneously or independently. Participants performed the task in three experimental conditions: (a) alone; (b) simultaneously next to each other in pairs, without receiving feedback of the other's responses (shared without feedback); and (c) simultaneously while receiving the feedback (shared with feedback). We focused on two face-sensitive ERP components: The amplitude of the N170 was greater in the “shared with feedback” condition compared to the alone condition, reflecting a top–down effect of shared attention on the structural encoding of faces, whereas the EPN was greater in both shared context conditions compared to the alone condition, reflecting an enhanced attention allocation in the processing of emotional content of faces, modulated by the social context. Taken together, these results suggest that shared attention amplifies the neural processing of faces, regardless of the valence of facial expressions.

Funder

Villum Fonden

Publisher

MIT Press - Journals

Subject

Cognitive Neuroscience

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