The Three-Tier Conduction Model of Human Body: Consciousness, Affective Dynamic Regulatory System, and Body Layer

In contemporary cognitive science and psychosomatic medicine, a widely adopted simplified model conceptualizes human functioning as a two-tier structure consisting of a conscious layer and a body layer. However, four categories of cross-species empirical phenomena—innate behavioral disposition differentiation among genetically identical and environmentally uniform individuals, structural remodeling of endocrine function and lifespan by long-term affective baselines, steady-state inertia in non-neural organisms, and the systematic reverse modulation of cognition by affective states—collectively point to a logical gap that the two-tier model cannot accommodate. Based on the "One-Body-Three-Functions" framework, this paper derives a homologous structure at the human level and proposes the existence of an intermediary variable—the Affective Dynamic Regulatory System (ADRS)—positioned between the Discriminative Consciousness and the Body Layer. This system carries initial parameters at the inception of life, continuously receives modulation from the Discriminative Consciousness and feedback from the Body Layer throughout the lifespan, while simultaneously outputting operational parameters downward to the Body Layer and modulating the cognitive baseline of the Discriminative Consciousness upward. This paper defines six functional characteristics of the system, constructs a three-loop coupling conduction chain of "Discriminative Consciousness ↔ ADRS ↔ Body Layer," and uniformly derives the necessity of the four categories of phenomena within the framework. This paper does not negate the validity of existing empirical research, but rather provides a heuristic frame of reference capable of integrating current findings.