A hypnagogic hallucination refers to the transitional states of to and from sleep. It is also referred to as hypnagogia and has been popular in the Psychology literature since 1983.
Hypnagogic Hallucination/Sleep Paralysis
You can call it a mental image if you are awake, or a dream if you are asleep. If you get this kind of vivid picture while you are in the process of waking or falling asleep, you might call it a hypnopompic or hypnagogic hallucination. Otherwise, it could be called an hallucination if it is connected with some pathological or drug related cause.
Hypnagogic States was created on 2008-09-13.
This experience is known as a "hypnagogic hallucination," a sensory experience that occurs between wakefulness and sleep. It can create the illusion of hearing familiar sounds or voices, like hearing your name being called out in a crowd.
hypnagogic state
As you fall asleep
Hallucination Engine was created in 1994.
Hallucination Strip was created in 1974.
The duration of Hallucination Generation is 1.5 hours.
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Artificial Hallucination was created on 2004-02-25.