Closed-eye hallucination
Closed-eye hallucination
Closed-eye hallucination (pronunciation: /ˈkləʊzd aɪ hæl.jʊ.sɪˈneɪ.ʃən/) is a type of hallucination that occurs when one's eyes are closed, but the mind perceives images or patterns that are not actually present in reality.
Etymology
The term "closed-eye hallucination" is derived from the English words "closed", "eye", and "hallucination". "Closed" comes from the Old English "clysan", meaning to shut or close. "Eye" is from the Old English "eage", which has the same meaning. "Hallucination" is derived from the Latin "hallucinari", meaning to wander in the mind.
Types of Closed-eye Hallucinations
There are several types of closed-eye hallucinations, including:
- Phosphenes: These are perceived sensations of light caused by the stimulation of the visual system other than by light itself. They often appear as random spots or shapes of color when the eyes are closed.
- Hypnagogic Hallucinations: These occur in the transition from wakefulness to sleep and can include a wide range of sensory experiences.
- Hypnopompic Hallucinations: These occur in the transition from sleep to wakefulness and can also include a wide range of sensory experiences.
Causes
Closed-eye hallucinations can be caused by a variety of factors, including:
- Sleep deprivation
- Stress
- Psychedelic drugs
- Certain medications
- Certain mental health conditions
Treatment
Treatment for closed-eye hallucinations often involves addressing the underlying cause. This can include getting more sleep, reducing stress, adjusting medication, or treating any underlying mental health conditions.
See Also
External links
- Medical encyclopedia article on Closed-eye hallucination
- Wikipedia's article - Closed-eye hallucination
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