Functional Psychology by Gulyaev A–E: Core Functional Architecture, Psychotypes A–D, and State E

Functional Psychology by Gulyaev A–E is an authorial, multidimensional model of human functioning that describes individual differences through the configuration, activation, and interaction of basic psychological functions across situations, relationships, and states. The framework distinguishes four original psychotypical architectures, A, B, C, and D, from State E. A and B represent expansion and development of a functional contour; C and D represent holding, filling, stabilization, and reproduction. State E is not a fifth natural psychotype but a state of functional disintegration arising within an original A, B, C, or D architecture. This foundational concept note establishes the authorship, canonical terminology, public conceptual architecture, scientific limitations, and research directions of the model. Diagnostic algorithms, interview protocols, scoring rules, proprietary case materials, and the architecture of Gulyaev AI Core are intentionally excluded.