hypnagogic image

(redirected from Hypnagogic hallucination)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to Hypnagogic hallucination: narcolepsy, hypnopompic hallucination

hypnagogic image

n
(Psychology) psychol an image experienced by a person just before falling asleep, which often resembles a hallucination
Mentioned in ?
References in periodicals archive ?
Also, she reported visual distortions in the absence of drowsiness,4 thereby ruling out hypnagogic hallucination.
Injury to the hypothalamus from tumor, surgery, or other cause can induce problems with REM sleep: sleep paralysis, hypnagogic hallucination, sleep onset REM period, and muscle atonia.
Apparently it's called a hypnagogic hallucination (if it happens as you're going to sleep) and a hypnopompic hallucination if Sleep's a funny old it happens as you're waking.
The hypnagogic hallucination group differences were: 21% of the respondents not taking tricyclic antidepressant medication reported no hypnagogic hallucinations versus 12% of those taking tricyclic antidepressants reported no hypnagogic hallucinations; and 19% of the respondents not taking tricyclic antidepressant medication reported having frequent hypnagogic hallucinations versus 28% of those taking tricyclic antidepressant medication reported having frequent hypnagogic hallucinations.
2] About 10% of individuals with narcolepsy have the four core symptoms of narcolepsy: paroxysmal sleep, cataplexy, hypnagogic hallucination, and sleep paralysis.
Narcolepsy is a rare, chronic nervous system disease that usually includes acute daytime drowsiness, episodic cataplexy, sleep paralysis, hypnagogic hallucination and a disrupted sleep cycle.
A hypnagogic hallucination is vivid, realistic imagery that occurs in the transition into or from sleep.
A hypnagogic hallucination is vivid imagery that occurs with the onset of sleep that is hard to distinguish from reality.
Hypnagogic Hallucination (20-40%) Dream imagery occurring at the onset or end of sleep,
Narcolepsy is characterized by excessive sleepiness, cataplexy, hypnagogic hallucinations, and sleep paralysis during the rapid eye movement period of sleep.