Impact of hypnosis on psychophysiological measures: A scoping literature review.

Détails

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Etat: Public
Version: Final published version
Licence: CC BY-NC-ND 4.0
ID Serval
serval:BIB_77287767C07E
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Impact of hypnosis on psychophysiological measures: A scoping literature review.
Périodique
The American journal of clinical hypnosis
Auteur⸱e⸱s
Fernandez A., Urwicz L., Vuilleumier P., Berna C.
ISSN
2160-0562 (Electronic)
ISSN-L
0002-9157
Statut éditorial
Publié
Date de publication
08/2022
Peer-reviewed
Oui
Volume
64
Numéro
1
Pages
36-52
Langue
anglais
Notes
Publication types: Journal Article ; Review
Publication Status: ppublish
Résumé
Exploring psychophysiological changes during hypnosis can help to better understand the nature and extent of the hypnotic phenomenon by characterizing its influence on the autonomic nervous system (ANS), in addition to its central brain effects. Hypnosis is thought to induce a relaxation response, yet studies using objective psychophysiological measures alongside hypnosis protocols show various results. We review this literature and clarify the effects of hypnosis on psychophysiological indices of ANS activity and more specifically of the stress/relaxation response, such as heart rate variability and electrodermal activity. Studies reporting psychophysical measures during hypnosis were identified by a series of Pubmed searches. Data was extracted with an interest for the influence of hypnotizability and effects of specific suggestions or tasks on the findings. We found 49 studies comprising 1315 participants, 45 concerning healthy volunteers and only 4 on patients. Sixteen compared high vs. low hypnotizable people; 30 measured heart rate, 18 measured heart rate variability, 25 electrodermal activity, and 23 respiratory signals as well as other physiological parameters. Globally, results converge to show reductions in sympathetic responses and/or increases in parasympathetic tone under hypnosis. Several methodological limitations are underscored, such as older studies (N = 16) using manual analyses, small sample sizes (<30, N = 31), as well as uncontrolled multiple comparisons. Nevertheless, we confirm that hypnosis leads to a physiological relaxation response and highlight promising avenues for this research. Suggestions are made for guiding future work in this field.
Mots-clé
Autonomic Nervous System, Heart Rate, Humans, Hypnosis, Psychophysiology, Suggestion, autonomic nervous system, relaxation response
Pubmed
Web of science
Open Access
Oui
Création de la notice
15/11/2021 16:31
Dernière modification de la notice
17/10/2023 7:19
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