Emotion Divergence and an Observation Model Derived from the Equation of Mind — How Retained Difference Branches into Emotion —

This paper defines mind as a recursive circulatory structure in which existence is combined with recursive self-referential retention, and treats emotion not as an independent box given in advance, but as a direction that emerges when retained difference folds back onto existence. Using the equations Aₜ = α (Mₜ, Δₜ) Eₜ = f (Iₜ, Δₜ, Mₜ, Aₜ) the paper describes how emotional drive arises from difference, retention, and circulation. It first places wistful as a shared base state within the sadness-related domain, and shows how states such as yearning, emptiness, and anxious drift diverge from it depending on target-directedness, residual hope, and threat evaluation. It then turns to anger as a test case, showing how irritation, righteous indignation, resentment, and rage branch according to the magnitude of invasive difference, the depth of retention, the mode of circulation, and the rise of retention pressure. In this way, emotions are not treated as isolated categories, but as dynamic branches emerging from shared structural bases. The paper further proposes this branching structure as an observation model connectable to physiological indices. What matters is not one-to-one agreement in absolute values, but the directional consistency of vectors such as oxytocin, dopamine, cortisol, and HRV. The aim is to shift emotion research away from comparing fixed labels and toward the simultaneous observation of how a shared base state diverges into different emotional directions. Related English paper: Interference-Based Generative Theory Definition of Mind The Challenge of the Interference-Based Generative System — A List of Extended Hypotheses