Introduction: Spatial properties of hallucinations have received relatively little systematic investigation. We present evidence from a web-based study of the spatial properties of a broad array of hallucinations associated with sleep paralysis. Predictions regarding spatial characteristics of hallucinations were based on proposed neurophysiological mechanisms underlying different types of...
Individual differences were investigated in the lateralisation of two general categories of hypnagogic and hypnopompic hallucinations associated with sleep paralysis: (1) Vestibular-motor (V-M) hallucinations; comprising sensations of floating, flying, illusory locomotion and postural adjustments, out-of-body experiences (OBE), and autoscopy; and (2) Intruder hallucinations; incorporating a...
Hypnagogic and hypnopompic experiences (HHEs) accompanying sleep paralysis (SP) are often cited as sources of accounts of supernatural nocturnal assaults and paranormal experiences. Descriptions of such experiences are remarkably consistent across time and cultures and consistent also with known mechanisms of REM states. A three-factor structural model of HHEs based on their relations both to...