Emergence of robust cooperative states by iterative internalizations of opponents' personalized values in minority game

Abstract

Adolescence is a period in which individuals begin facing some challenging choices. Through these choices, and social interactions with peers, adolescent individuals develop their “personalized values” that are the foundations of their actions. It is known that the adolescent brains have high plasticity, and that the adolescent brains change dynamically, other than that of an adult brains. This study discusses the type of behavior that emerges from adolescents, as well as adult individuals with elevated plasticities. To realize this, we adopt the minority game (MG), which is one of the task concerning the choice described above. We implement Elman-nets with different learning rates that express different degrees of the plasticity as the player models in the MG. Our simulation results showed that it is a possibility that robust cooperative states emerge by iteratively internalizing the opponent players' personalized values among players that have a network of reference relationship, irrespective of their varying degrees of plasticity.