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A hypnopompic state (or hypnopomp or hypnopompia) is the state of consciousness leading out of sleep, a term coined by the spiritualist Frederick Myers. Its twin is the hypnagogic state at sleep onset; though often conflated, the two states are not identical.
The hypnagogic state is rational waking cognition trying to make sense of non-linear images and associations; the hypnopompic state is emotional and credulous dreaming cognition trying to make sense of real world stolidity. They have a different phenomenological character. Sleepers often wake confused, or speak without making sense, a phenomenon the psychologist Peter McKeller calls "hypnopompic speech."
Hypnogogic images are short lived hallucination like images that can occur as some people wake up.
- T. Balkin, A. Braun, et al., “The process of awakening: A PET study of regional brain activity patterns mediating the reestablishment of alertness and consciousness,”Brain, vol. 125, 2002, pp. 2308–19.
- P. Tassi and A. Muzet, “Sleep inertia,” Sleep Medicine Review, vol. 4, no. 4, 2000, pp. 341–53.
- McKellar, P (1989). Abnormal Psychology, Routledge.
- Warren, Jeff (2007). "The Hypnopompic" The Head Trip: Adventures on the Wheel of Consciousness.
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