本次发布为《心智系统的整体耦合性原理》之解释篇(Ⅲ),集中讨论心智系统在运行成立边界处的存在方式,并在不引入经验性症状集合、诊断分类或功能等级评价的前提下,对精神病性作为整体耦合关系进入灾难性失调区间的结构状态进行存在论—结构论界定。 精神病性在此被界定为一种结构性极限区间:在该区间内,心智系统的运行仍在持续,却已不再满足其最小整体成立条件。精神病性并不指向某一临床类别、症状集合或功能水平的降低,而被限定为整体耦合关系发生结构级失调的状态。基于此,精神病性被区分于人格结构、认知结构、创伤结构及解离策略等相邻状态,明确其不属于参数偏移、极端配置或局部失衡,而是整体耦合关系在结构层级上的失调。 通过对五个运作向量最小成立条件的逐一界定与向量间级联失效机制的分析,揭示精神病性作为一种“运行仍在继续,但整体系统已不再成立”的边界状态,并完成其在理论框架中的存在论定位。 本文不提供经验性判据或诊断标准,而仅在整体耦合性原理之下,完成对精神病性作为运行成立边界的存在论确认。 This release constitutes Explanatory Part (III) of The Principle of Holistic Coupling in the Mental System. It focuses on the mode of existence of the mental system at the boundary of operational validity and, without introducing empirical symptom clusters, diagnostic classifications, or functional grading frameworks, provides an ontological–structural delineation of psychoticity as a structural state in which holistic coupling enters a zone of catastrophic dysregulation. Psychoticity is defined here as a structural limit interval in which the mental system continues to operate while no longer satisfying its minimal conditions of holistic validity. It does not refer to a clinical category, a cluster of symptoms, or a reduction in functional level; rather, it is delimited as a state in which holistic coupling relations enter structural-level dysregulation. On this basis, psychoticity is distinguished from personality structures, cognitive structures, trauma structures, and dissociative strategies, clarifying that it does not constitute parameter deviation, extreme configuration, or localized imbalance, but instead marks structural-level dysregulation within holistic coupling relations. Through a systematic specification of the minimal validity conditions of the five operational vectors and an analysis of cascading failure across their interrelations, psychoticity is identified as a boundary state in which operation persists, yet the system as a whole can no longer be said to remain structurally valid. This establishes its ontological position within the broader theoretical framework. This work does not offer empirical criteria or diagnostic standards; rather, under the Principle of Holistic Coupling, it establishes psychoticity as the ontological boundary of operational validity in the mental system.