Dan Nakamura

Reliability and Validity of the Japanese Version of the Inventory of Psychotic-Like Anomalous Self-Experiences.

International Journal of Methods in Psychiatric Research September 1, 2026 Dan Nakamura, Masafumi Mizuno, David C Cicero et al.

Objectives: Basic self-disturbance is an abnormality in subjective self-experience and a core feature of schizophrenia. The Inventory of Psychotic-Like Anomalous Self-Experiences (IPASE) is a self-report measure designed to assess basic self-disturbance. Despite its clinical utility, a Japanese version has not yet been established. This study aimed to develop a Japanese version of the IPASE and...