Modeling the formation of social conventions from embodied real-time interactions

PLoS One. 2020 Jun 22;15(6):e0234434. doi: 10.1371/journal.pone.0234434. eCollection 2020.

Abstract

What is the role of real-time control and learning in the formation of social conventions? To answer this question, we propose a computational model that matches human behavioral data in a social decision-making game that was analyzed both in discrete-time and continuous-time setups. Furthermore, unlike previous approaches, our model takes into account the role of sensorimotor control loops in embodied decision-making scenarios. For this purpose, we introduce the Control-based Reinforcement Learning (CRL) model. CRL is grounded in the Distributed Adaptive Control (DAC) theory of mind and brain, where low-level sensorimotor control is modulated through perceptual and behavioral learning in a layered structure. CRL follows these principles by implementing a feedback control loop handling the agent's reactive behaviors (pre-wired reflexes), along with an Adaptive Layer that uses reinforcement learning to maximize long-term reward. We test our model in a multi-agent game-theoretic task in which coordination must be achieved to find an optimal solution. We show that CRL is able to reach human-level performance on standard game-theoretic metrics such as efficiency in acquiring rewards and fairness in reward distribution.

Publication types

  • Research Support, Non-U.S. Gov't
  • Video-Audio Media

MeSH terms

  • Computer Simulation
  • Decision Making / physiology*
  • Game Theory
  • Humans
  • Models, Psychological*
  • Reinforcement, Social*
  • Sensorimotor Cortex / physiology
  • Social Behavior*
  • Social Norms*

Grants and funding

PFMJV. This project has received funding from the European Union’s Horizon 2020 research and innovation programme, ID:820742 and ID:641321. MSF and CMF. This project has been supported by INSOCO-DPI2016-80116-P. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.