Turnbull and Solms, TeBrain and the Inner World, 136–159; Kelly Bulkeley, Visions of the Night: Dreams, Religion and Psychology (New York: State University of New York Press, 1999); Andreas Mavrematis, Hypnogogia: Te Unique State of Consciousness Between Wakefulness and Sleep (London: Routledge, 1987); Brigitte Holzinger, Stephen LaBerge and Lynn Levitan, ‘Psychophysiological Correlates of Lucid Dreaming’, American Psychological Association 16:2 (2006): 88–95; Watanabe Tsuneo, ‘Lucid Dreaming: Its Experimental Proof and Psychological Conditions’, Journal of International Society of Life Information Science 21:1 (2003): 159–162; Victor I. Spoormaker and Jan van den Bout, ‘Lucid Dreaming Treatment for Nightmares: A Pilot Study’, Psychotherapy and Psychosomatics 75:6 (2006): 389–394.
