A developmental framework of interpersonal neural synchrony

Author(s)
Stefanie Hoehl, Anna Bánki, Alicja Brzozowska, Alessandro Carollo, Kathrin Kostorz, Trinh Nguyen, Carolina Pletti, Susanne Reisner, Verena T. Schäfer, Christina Schaetz, Markus R. Tünte
Abstract

Interpersonal neural synchrony (INS), the temporal alignment of brain activities between individuals, has been proposed as a biomarker for successful communication and smooth social interaction. Surging empirical evidence shows that INS emerges spontaneously between infants, children, and their caregivers from early on in development. Yet, little is known about the developmental preconditions and functions of INS in childhood. This paper presents a developmental framework for understanding INS, integrating insights from structural and functional brain maturation, as well as behavioral, social, and cognitive development. We discuss how early caregiver-infant interactions, characterized by shared perceptual rhythms, facilitate the emergence of INS. Given initial limitations in temporal precision of neural processing, early INS is likely constrained to low-frequency brain rhythms and evolves alongside the maturation of neural networks and socio-cognitive abilities. We outline how INS may support critical developmental processes, including social learning, language acquisition, and attachment formation, through enabling mutual prediction and co-regulation between caregivers and children. Furthermore, we hypothesize that tasks requiring higher-order mutual understanding are linked to qualitative changes in INS patterns over time. This framework highlights the potential of INS as both a marker and a driver of developmental change, offering new avenues for research and intervention. Longitudinal studies and rhythm-based interventions could deepen our understanding of how INS supports development, with implications for enhancing social learning and attachment in populations at risk for developmental challenges. This work underscores the importance of adopting a developmental perspective in INS research.

Organisation(s)
Faculty of Psychology, Department of Developmental and Educational Psychology, Department of Cognition, Emotion, and Methods in Psychology
External organisation(s)
Faculty of Rehabilitation Sciences, Technische Universität Dortmund, Università degli Studi di Trento, Neuroscience of Perception and Action Lab, Italian Institute of Technology, Department of Developmental and Biological Psychology, University of Heidelberg, Vienna Doctoral School Cognition
Journal
Developmental Review
Volume
78
ISSN
0273-2297
DOI
https://doi.org/10.1016/j.dr.2025.101234
Publication date
12-2025
Peer reviewed
Yes
Austrian Fields of Science 2012
501005 Developmental psychology
ASJC Scopus subject areas
Pediatrics, Perinatology, and Child Health, Education, Experimental and Cognitive Psychology, Developmental and Educational Psychology, Psychiatry and Mental health
Portal url
https://ucrisportal.univie.ac.at/en/publications/161ff2e6-0cd9-4b93-9820-85a70a07d5ec