Abstract

Current models of human functioning typically distribute regulation across partially independent cognitive, emotional, biological, behavioral and environmental subsystems. Although systems theory, predictive processing, cybernetics, and computational psychiatry have relatively advanced understanding of adaptive regulation, no unified framework currently formalizes identity stability as the primary generative and regulatory variable governing multi-domain human
function coherence [1 − 4]. This paper introduces the Human Integrated Living Dynamics Theory (HILDT), an axiomatic multi-domain framework proposing Identity Stability (I) as the primitive coherence field underlying human
functioning system dynamics. Within HILDT, cognition, emotion, behavior, biology and environmental adaptation, are conceptualized as dependent projections of a unified identity stability coherence structure rather than independent causal subsystems. HILDT introduces two derived dimensions: Identity Stability Depth (ISD),representing internal coherence integrity across dynamic self-states, and Identity Stability Length (ISL), representing continuity of coherence across changing external environments and relational systems. An axiomatic mathematical formulation is used in which
multi-domain Identity Stability is governed by variance-constrained identity stability coherence dynamics. HILDT proposes that adaptive functioning emerges through maintenance of a bounded cross-domain variance, while dysfunction arises from coherence fragmentation, desynchronization, or instability propagation across projected domains. HILDT provides a unified Identity Stability-centered architecture for modeling human adaptive dynamics and offers a foundation for computational simulation and multi-domain systems research.