Sleep paralysis is a phenomenon in which a person, either when falling asleep or awakening, temporarily experiences an inability to move. It is a transitional state between wakefulness and sleep characterized by complete muscle atonia (muscle weakness). It is often associated with terrifying visions, such as an intruder in the room, to which one i...
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http://en.wikipedia.org/wiki/Sleep_paralysis
(from the article `unidentified flying object`) ...However, the credibility of the ETH as an explanation for abductions is disputed by most psychologists who have investigated this phenomenon. They ... ...when standing or walking. Sleep may last a few seconds or several minutes, rarely for more than an hour, and the narcoleptic is easil...
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http://www.britannica.com/eb/a-z/s/108
An (often frightening) state of seeming to being awake but unable to move. See also false awakening.
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http://www.encyclo.co.uk/local/20137
An (often frightening) state of seeming to being awake but unable to move. See also false awakening.
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http://www.encyclo.co.uk/local/20157
<neurology, physiology> A condition that occurs in REM stage sleep. There is no movement of the skeletal muscles in this stage of sleep. ... See: REM stage sleep. ... (27 Sep 1997) ...
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paralysis occurring at awakening or sleep onset; it represents extension of the atonia of REM sleep into the waking state and is often seen in those suffering from narcolepsy or sleep apnea.
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Type: Term Definitions: 1. brief episodic loss of voluntary movement that occurs when falling asleep (hypnagogic sleep paralysis) or when awakening (hypnopompic sleep paralysis). One of the narcoleptic tetrad. Synonyms: sleep dissociation
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http://www.medilexicon.com/medicaldictionary.php?t=65127
Sleep paralysis: A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move for a few minutes, most often upon falling asleep or waking up. Sleep paralysis is due to an ill-timed disconnection between the brain and the body. The symptoms of sleep paralysis include sensations of noises, smells, levitat...
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