Hypnagogic Hallucination

By Renée Grinnell

False sensory perception(s) just before the onset of sleep (hypnagogia refers to the state between wakefulness and sleep).

Example: A man thinks he sees an old woman come through a locked door into his bedroom soon after he turns the light out.

    Last reviewed: By John M. Grohol, Psy.D. on 1 Sep 2011