Physiological Characteristics of Three Types of Lucid Dream

Abstract

In a previous report we proposed a classification of modes of lucid dream (LD) initiation into three distinct types. This preliminary analysis suggested that lucid dreams occurred either a) within two minutes of the onset of periods (Onset or0—LDs); b) after an awakening briefly interrupting a REM period (wake initiated or W—LDs); or c) in association with elevated REM activity (Phasic—P—LDs). Here we report further characteristics of these three types of REM lucid dreams.