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Oneirophrenia (from the Greek words "ὄνειρος" (oneiros, "dream") and "φρήν" (phrēn, "mind")) is a hallucinatory, dream-like state caused by several conditions such as prolonged sleep deprivation, sensory deprivation, or drugs (such as ibogaine).
A false awakening may occur following a dream or following a lucid dream (one in which the dreamer has been aware of dreaming). Particularly, if the false awakening follows a lucid dream, the false awakening may turn into a "pre-lucid dream", [2] that is, one in which the dreamer may start to wonder if they are really awake and may or may not come to the correct conclusion.
Dream interpretation is the process of assigning meaning to dreams. In many ancient societies, such as those of Egypt and Greece , dreaming was considered a supernatural communication or a means of divine intervention , whose message could be interpreted by people with these associated spiritual powers.
In speculative fiction, the line between dreams and reality may be blurred even more in service to the story. [92] Dreams may be psychically invaded or manipulated (Dreamscape, 1984; the Nightmare on Elm Street films, 1984–2010; Inception, 2010) or even come literally true (as in The Lathe of Heaven, 1971). [91]
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A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. [6] They are distinguishable from several related phenomena, such as dreaming (), which does not involve wakefulness; pseudohallucination, which does not mimic real perception, and is accurately perceived as unreal; illusion, which involves distorted or misinterpreted real ...
Derealization can accompany the neurological conditions of epilepsy (particularly temporal lobe epilepsy), migraine, and mild TBI (head injury). [12] There is a similarity between visual hypo-emotionality, a reduced emotional response to viewed objects, and derealization.
Psychoanalytic dream interpretation is a subdivision of dream interpretation as well as a subdivision of psychoanalysis pioneered by Sigmund Freud in the early 20th century. Psychoanalytic dream interpretation is the process of explaining the meaning of the way the unconscious thoughts and emotions are processed in the mind during sleep.