The Cognitive Action Model (CAM): A First-Principles Reformulation of Cognitive Type Theory

Jungian typology has long relied on phenomenological metaphors that resist formalization and high-fidelity prediction. This paper introduces the Cognitive Action Model (CAM), a structural architecture that reframes personality differences as stable biases in Information-Processing Regimes.Unlike descriptive models, CAM utilizes a tri-axial coordinate system to map cognitive output against a structural baseline. This approach accomplishes three primary breakthroughs:Regime-State Dynamics: It identifies the specific processing "regimes" that govern decision-making urgency and closure requirements, providing a structural explanation for the Judging/Perceiving (J/P) dichotomy.Computational Affinities: It reveals previously unrecognized structural clusters within the functional stack, explaining integration effort and cognitive strain through Indexing Compatibility rather than trait description.Displacement Metrics: It establishes a formal method for measuring the $\Delta$-Metric—the numerical distance between a subject's default architectural state and their live linguistic output.By grounding typology in Functional Role Assignment and Systemic Constraints, CAM offers a rigorous foundation for human-AI interface design, organizational auditing, and predictive behavioral analytics.