Sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.

<h4>Objectives</h4>The effects of hypnosis on physiological (gastrointestinal) functions are incompletely understood, and it is unknown whether they are hypnosis-specific and gut-specific, or simply unspecific effects of relaxation.<h4>Design</h4>Sixty-two healthy female volu...

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Autores principales: Paul Enck, Jochen Hefner, Beate M Herbert, Nazar Mazurak, Katja Weimer, Eric R Muth, Stephan Zipfel, Ute Martens
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Publicado: Public Library of Science (PLoS) 2013
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Acceso en línea:https://doaj.org/article/de9ce579540b43e58b2966ade6beb30b
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spelling oai:doaj.org-article:de9ce579540b43e58b2966ade6beb30b2021-11-18T08:41:43ZSensitivity and specificity of hypnosis effects on gastric myoelectrical activity.1932-620310.1371/journal.pone.0083486https://doaj.org/article/de9ce579540b43e58b2966ade6beb30b2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24358287/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Objectives</h4>The effects of hypnosis on physiological (gastrointestinal) functions are incompletely understood, and it is unknown whether they are hypnosis-specific and gut-specific, or simply unspecific effects of relaxation.<h4>Design</h4>Sixty-two healthy female volunteers were randomly assigned to either a single session of hypnotic suggestion of ingesting an appetizing meal and an unappetizing meal, or to relax and concentrate on having an appetizing or unappetizing meal, while the electrogastrogram (EGG) was recorded. At the end of the session, participants drank water until they felt full, in order to detect EGG-signal changes after ingestion of a true gastric load. During both conditions participants reported their subjective well-being, hunger and disgust at several time points.<h4>Results</h4>Imagining eating food induced subjective feelings of hunger and disgust as well as changes in the EGG similar to, but more pronounced than those seen with a real gastric water load during both hypnosis and relaxation conditions. These effects were more pronounced when imagining an appetizing meal than with an unappetizing meal. There was no significant difference between the hypnosis and relaxation conditions.<h4>Conclusion</h4>Imagination with and without hypnosis exhibits similar changes in subjective and objective measures in response to imagining an appetizing and an unappetizing food, indicating high sensitivity but low specificity.Paul EnckJochen HefnerBeate M HerbertNazar MazurakKatja WeimerEric R MuthStephan ZipfelUte MartensPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e83486 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Paul Enck
Jochen Hefner
Beate M Herbert
Nazar Mazurak
Katja Weimer
Eric R Muth
Stephan Zipfel
Ute Martens
Sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.
description <h4>Objectives</h4>The effects of hypnosis on physiological (gastrointestinal) functions are incompletely understood, and it is unknown whether they are hypnosis-specific and gut-specific, or simply unspecific effects of relaxation.<h4>Design</h4>Sixty-two healthy female volunteers were randomly assigned to either a single session of hypnotic suggestion of ingesting an appetizing meal and an unappetizing meal, or to relax and concentrate on having an appetizing or unappetizing meal, while the electrogastrogram (EGG) was recorded. At the end of the session, participants drank water until they felt full, in order to detect EGG-signal changes after ingestion of a true gastric load. During both conditions participants reported their subjective well-being, hunger and disgust at several time points.<h4>Results</h4>Imagining eating food induced subjective feelings of hunger and disgust as well as changes in the EGG similar to, but more pronounced than those seen with a real gastric water load during both hypnosis and relaxation conditions. These effects were more pronounced when imagining an appetizing meal than with an unappetizing meal. There was no significant difference between the hypnosis and relaxation conditions.<h4>Conclusion</h4>Imagination with and without hypnosis exhibits similar changes in subjective and objective measures in response to imagining an appetizing and an unappetizing food, indicating high sensitivity but low specificity.
format article
author Paul Enck
Jochen Hefner
Beate M Herbert
Nazar Mazurak
Katja Weimer
Eric R Muth
Stephan Zipfel
Ute Martens
author_facet Paul Enck
Jochen Hefner
Beate M Herbert
Nazar Mazurak
Katja Weimer
Eric R Muth
Stephan Zipfel
Ute Martens
author_sort Paul Enck
title Sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.
title_short Sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.
title_full Sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.
title_fullStr Sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.
title_full_unstemmed Sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.
title_sort sensitivity and specificity of hypnosis effects on gastric myoelectrical activity.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/de9ce579540b43e58b2966ade6beb30b
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