Kahl S, Kopp S. Modeling reciprocal belief coordination in social interaction based on free energy minimization. Presented at the ComCo2019, Osnabrück

Kahl, Sebastian 

Kopp, Stefan 

Publications at Bielefeld University

Modeling reciprocal belief coordination in social interaction based on free energy minimization  Sebastian Kahl1, Stefan Kopp Social Cognitive Systems Group, Bielefeld University, Bielefeld, Germany  Contact: skahl@uni-bielefeld.de1  We present a hierarchical Bayesian model based on principles of active inference to investigate the interplay of core processes within the social brain, during communicative interaction between multiple agents. Building on recent work on the sensorimotor processes in action and perception the model is extended to contribute a functional account of reciprocal belief coordination on the basis of communicative intentionality and free-energy minimization.   To investigate the possible interplay within the social brain during interaction of social agents, we developed an integrated Bayesian model, called Hierarchical Predictive Belief Update (HPBU), that grounds continuous sensorimotor perception and action in principles of Predictive Processing and active inference (A. Clark, 2013; Friston, Daunizeau, Kilner, & Kiebel, 2010; Kilner, Friston, & Frith, 2007).  Mentalizing gets involved in inferring intentionality from interaction partner's behavior, thereby influences the strength of perception-action coupling (Teufel, Fletcher, & Davis, 2010). Also, the attribution of intentionality was found to activate mentalizing to influence sensory processing to become “social perception”, an altered understanding of each other’s actions (Wykowska, Wiese, Prosser, & Müller, 2014). In previous work, we looked at the prediction-based processes underlying self-other distinction and sense of agency and how they interact with higher-level cognitive processes like mentalizing during non-verbal social interaction. We proposed and tested a functional model of sense of agency, embedded in HPBU, with which self-other distinction has been successfully simulated to arise during action and perception (Kahl & Kopp, 2018).  We present an extension of the HPBU hierarchy to achieve a bootstrapped mentalizing capability, informed by motor beliefs and self-other distinction of actions produced and perceived during interaction with other agents.  The model was evaluated in a simulation of three agents (each equipped with the model) interacting in a non-verbal communication game. Results show that the extended hierarchy is able to infer and produce sequences used for belief coordination with the other interacting agents and the model’s belief dynamics show its capability to foster belief coordination and create common ground between all three agents.   References Clark, A. (2013). Whatever next? Predictive brains, situated agents, and the future of cognitive science. Behavioral and Brain Sciences, 36(3), 181–204. http://doi.org/10.1017/S0140525X12000477 Friston, K. J., Daunizeau, J., Kilner, J., & Kiebel, S. J. (2010). Action and behavior: a free-energy formulation. Biological Cybernetics, 102(3), 227–260. http://doi.org/10.1007/s00422-010-0364-z Kilner, J. M., Friston, K. J., & Frith, C. D. (2007). Predictive coding: an account of the mirror neuron system. Cognitive Processing, 8(3), 159–166. http://doi.org/10.1007/s10339-007-0170-2 Teufel, C., Fletcher, P. C., & Davis, G. (2010). Seeing other minds: attributed mental states influence perception. Trends in Cognitive Sciences, 14(8), 376–382. http://doi.org/10.1016/j.tics.2010.05.005 Wykowska, A., Wiese, E., Prosser, A., & Müller, H. J. (2014). Beliefs about the Minds of Others Influence How We Process Sensory Information. PLoS ONE, 9(4), e94339–11. http://doi.org/10.1371/journal.pone.0094339 Kahl, S., & Kopp, S. (2018). A Predictive Processing Model of Perception and Action for Self-Other Distinction. Frontiers in Psychology, 9, 47–14. http://doi.org/10.3389/fpsyg.2018.02421 

Modeling reciprocal belief coordination in social interaction based on free energy minimization

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Modeling reciprocal belief coordination in social interaction based on free energy minimization

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