Developmental perspectives on HiTOP psychosis superspectrum: Unveiling pitfalls and theoretical fallacies

The Hierarchical Taxonomy of Psychopathology (HiTOP) consortium recently defined the psychosis superspectrum and focused on its nosology, etiology, and lifespan development. In the HiTOP bottom-up conceptual model, the psychosis superspectrum comprises two spectra - psychoticism and detachment - each consisting of traits and symptoms. However, the HiTOP model of psychosis is not without critical points, particularly regarding the two-spectrum structure of the superspectrum. Acknowledging these limitations - which warrant further empirical investigation and model refinement - this contribution focuses on the dimensional nuances of the psychosis superspectrum as articulated by the HiTOP consortium, outlining a possible longitudinal development of psychosis across developmental and clinical stages