Geometric Hyperscanning of Affect under Active Inference

Fuente: arXiv
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Main Authors: Hinrichs, Nicolas, Albarracin, Mahault, Bolis, Dimitris, Jiang, Yuyue, Christov-Moore, Leonardo, Schilbach, Leonhard
Format: Preprint
Published: 2025
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author Hinrichs, Nicolas
Albarracin, Mahault
Bolis, Dimitris
Jiang, Yuyue
Christov-Moore, Leonardo
Schilbach, Leonhard
author_facet Hinrichs, Nicolas
Albarracin, Mahault
Bolis, Dimitris
Jiang, Yuyue
Christov-Moore, Leonardo
Schilbach, Leonhard
contents Second-person neuroscience holds social cognition as embodied meaning co-regulation through reciprocal interaction, modeled here as coupled active inference with affect emerging as inference over identity-relevant surprise. Each agent maintains a self-model that tracks violations in its predictive coherence while recursively modeling the other. Valence is computed from self-model prediction error, weighted by self-relevance, and modulated by prior affective states and by what we term temporal aiming, which captures affective appraisal over time. This accommodates shifts in the self-other boundary, allowing affect to emerge at individual and dyadic levels. We propose a novel method termed geometric hyperscanning, based on the Forman-Ricci curvature, to empirically operationalize these processes: it tracks topological reconfigurations in inter-brain networks, with its entro-py serving as a proxy for affective phase transitions such as rupture, co-regulation, and re-attunement.
format Preprint
id arxiv_https___arxiv_org_abs_2506_08599
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Geometric Hyperscanning of Affect under Active Inference
Hinrichs, Nicolas
Albarracin, Mahault
Bolis, Dimitris
Jiang, Yuyue
Christov-Moore, Leonardo
Schilbach, Leonhard
Neurons and Cognition
Second-person neuroscience holds social cognition as embodied meaning co-regulation through reciprocal interaction, modeled here as coupled active inference with affect emerging as inference over identity-relevant surprise. Each agent maintains a self-model that tracks violations in its predictive coherence while recursively modeling the other. Valence is computed from self-model prediction error, weighted by self-relevance, and modulated by prior affective states and by what we term temporal aiming, which captures affective appraisal over time. This accommodates shifts in the self-other boundary, allowing affect to emerge at individual and dyadic levels. We propose a novel method termed geometric hyperscanning, based on the Forman-Ricci curvature, to empirically operationalize these processes: it tracks topological reconfigurations in inter-brain networks, with its entro-py serving as a proxy for affective phase transitions such as rupture, co-regulation, and re-attunement.
title Geometric Hyperscanning of Affect under Active Inference
topic Neurons and Cognition
url https://arxiv.org/abs/2506.08599