Role-Based Identity, Memory, and Brain Networks: Empirical Foundations for the Theory of Psychology of Inner Worlds

In this article, I present a comprehensive neuropsychological justification of the theory "Psychology of Inner Worlds" (PIW). According to this theory, each socially significant role—such as child, partner, specialist, sibling, or friend—is enacted through a distinct and autonomous subpersonality. I do not use the term "subpersonality" as a metaphor or convenient label, but as a concept that refers to a functionally autonomous psychological module with its own memory architecture, affective tone, perceptual filters, and strategies of adaptation. My goal is not simply to illustrate a conceptual framework, but to demonstrate—based solely on post-2010 empirical findings from neuroimaging, clinical, and animal studies—that the human self is a structurally modular system composed of context-sensitive, dynamically activated role-based configurations.