Systematic Self-Observation of Entoptic Phenomena and Their Relation to Hypnagogia
Imagination, Cognition and Personality March 1, 1991 Joseph Glicksohn, Gailie Friedland, Avi Salach-Nachum
We report the results of systematic self-observation of entoptics and hypnagogia, in a study whose purpose was to investigate the “entoptic explanation” of hypnagogic imagery (i.e., that entoptic phenomena play a role in the genesis of visual hypnagogic imagery). Employing various experimental manipulations designed to increase the incidence of both phenomena, we were able to show the...