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A Clinical Study of Hypnagogic Hallucinations

Published online by Cambridge University Press:  29 January 2018

Carrick McDonald*
Affiliation:
Warlingham Park Hospital, Surrey

Extract

Hypnagogic hallucinations are well established in text books of psychiatry, as also are hypnopompic hallucinations. Hypnagogic hallucinations are those which occur as the subject falls asleep and prevent him falling into a sound sleep, whereas hypnopompic hallucinations occur when the subject is waking up. Since by definition hypnagogic hallucinations actually waken the subject, the distinction between these two types of mental phenomena may be artificial. Psychiatric texts vary in their assessment of the significance of these hallucinations, and, with some exceptions, they have generally been considered as ‘normal’ phenomena.

Type
Research Article
Copyright
Copyright © Royal College of Psychiatrists, 1971 

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References

Anderson, M. (1956). ‘Allucinazioni ipnagogiche prodromo di schizofrenia.’ Lav, neuropsichiat. 18:1, 926.Google Scholar
Benincasa-Stagni, E., and Vacchini, M. (1957). ‘Considerazioni sulla gcnesi delle c.d. allucinazioni ipnagogiche. Descrizione di un caso clinico.Lav. newopsichiat., 20, 322.Google Scholar
Foulkes, D., and Vogel, G. (1965). ‘Mental activity at sleep onset.J. abnorm. Psychol., 70, 231–43.CrossRefGoogle ScholarPubMed
Roth, B., and Bruhova, S. (1968). ‘Klinicka a polygraficka studie snu u narkolepsie, hypersomnie a stavu disociovaneho spanku.Cs. Psychiat., 64, 2739.Google Scholar
Vihvelin, H. (1948). ‘On the differentiation of some typical forms of hypnagogic hallucinations.Acta psychiat. neurol., Copenhagen, 23:3$4 359–89.Google Scholar
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