The Freud-NDQ Project from a Naturalistic Perspective: A New Epistemological, Scientific, and Clinical Approach to Quantitative Psychodynamics

This article proposes an epistemological, ontological, and methodological reconstruction of the Freud–NDQ Project (Quantitative Neurodynamics), explicitly repositioning it within the traditions of Philosophical Naturalism, Critical Empiricism, Scientific Realism, revised Logical Positivism, Pragmatism, and contemporary Philosophy of Science. Starting from Sigmund Freud's Project for a Scientific Psychology (1895), the work seeks to update its energetic intuitions through an operationalizable informational and neurodynamic model, without resorting to strong metaphysical assumptions. Carl Gustav Jung's analytical psychology and Erich Neumann's developments are integrated into the model through a conceptual naturalization of archetypes, understood as recurring psychobiological patterns and not as autonomous ontological entities. Quantitative Neurodynamics (QND) is redefined as an integrative scientific model that describes the mind as a dynamic information processing system, and Integrated Quantitative Psychodynamics (IQP) is presented as an experimental clinical methodology based on empirical indicators such as the Neuropsychic Flexibility Index (NFI). It is concluded that the Freud–QND Project, in its naturalized version, constitutes a theoretically coherent, clinically pragmatic, and epistemologically defensible proposal for an expanded scientific psychology.