Fumiya Miyano

Psychosis induced by invocation presenting as possession state: A case of Kitousei-Seishinbyo still emerging in modern Japan.

Psychiatry and Clinical Neurosciences Reports December 1, 2025 Fumiya Miyano, Nobuyuki Mitsui, Yutaka Fujii et al.

Kitousei-Seishinbyo, or psychosis induced by invocation, was first described by Morita in 1915 as a culture-bound syndrome characterized by possession-like states and personality transformation triggered by prayer or spiritual practices. New psychosocial triggers (e.g., self-improvement seminars, emerging religious groups) have been identified. However, reports of possession-related episodes...