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The role of interpersonal neural SYNchrony during verbal CONversations: Correlation, Causation and Personalization

Project description

Interpersonal neural synchrony in human conversations

Turn-taking and phonetic convergence are important indicators of mutual engagement in conversations. Theoretical accounts suggest that interpersonal neural synchrony (INS) underpins these conversational patterns, yet only a limited number of studies have explored INS in the context of free-flowing conversations. With the support of the Marie Sklodowska-Curie Actions programme, the SYNCON project will assess the correlational and causal relationship between INS and conversations characterised by increased turn-taking and phonetic convergence. Through an analysis of INS frequency, phase, and topography, the project will generate dyad-specific INS profiles to induce those in interlocutors using a longitudinal design (personalised neuroscience). The project will contribute to a more comprehensive understanding of human communication.

Objective

Verbal conversations are a hallmark of human social interaction and are supported by various socio-cognitive processes promoting specific conversation patterns. For instance, more engaging conversations are marked by how often and quickly participants switch turns speaking (turn-taking). Similarly, an engaging conversation is also marked by the interlocutors converging towards a common phonetic space (phonetic convergence). One of the neural mechanisms supporting these conversation patterns is proposed to be interpersonal neural synchrony (INS), the coupling of brain oscillations between two interlocutors. However, only a few studies truly tested the role of INS during free-flowing conversations. These studies have some limitations as they were either conducted in a non-ecologically valid context or the evidence was purely correlational. In addition, important inter-dyadic differences were neglected. The present project – SYNCON – aims to overcome these limitations by combining EEG hyperscanning with multi-person brain stimulation (tACS) and personalized neuroscience. I will first measure the correlation between INS and mutually engaged conversations marked by enhanced turn-taking and phonetic convergence. The measurement will yield a dyad-specific INS profile, considering properties such as frequency, phase, and topography. Utilizing a longitudinal design, these profiles will allow me – in a second experiment – to exogenously induce INS between interlocutors and, in turn, promote mutually engaged conversations (i.e. increased turn-taking and phonetic convergence). Understanding the causal role of INS in conversations will have groundbreaking applications for facilitating interpersonal communication across therapeutical and educational contexts. Accordingly, this project will address critical gaps in our understanding of the neural underpinnings of human communication and its potential use in applied contexts.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2022-PF-01

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Coordinator

FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA
Net EU contribution
€ 188 392,08
Address
VIA MOREGO 30
16163 Genova
Italy
Region
Nord-Ovest Liguria Genova
Activity type
Research Organisations
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Total cost
No data