Japanese Society of Sleep Research Manuals

Japanese Society of Sleep Research Learning Manual of PSG Chart: Polysomnogram, Sleep Stage Scoring, Interpretation

This manual provides standardized definitions and scoring criteria for sleep stages based on polysomnographic recordings. It includes detailed guidelines for scoring NREM and REM sleep, movement time, arousal responses, and transitional periods. The document is intended for sleep researchers and clinicians to improve reliability and consistency in sleep stage identification and automated analysis.

It was developed by the Sleep Computing Committee, a subcommittee of the Japanese Society of Sleep Research, to address ambiguities in the 1968 standard scoring system and to support computer-based sleep staging algorithms.

Covers: Supplementary and Amended Definitions for International Criteria for Sleep Stage Scoring · Several Points to Keep in Mind for Using This Learning Manual · Sleep Diagram · Characteristic Polysomnographic Patterns for Scoring Sleep Stages · Sleep Onset Process · Scoring of NREM Sleep and MT (Movement Time)