Somatosensory Illusions Elicited by Sham Electromagnetic Field Exposure: Experimental Evidence for a Predictive Processing Account of Somatic Symptom Perception

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Carolin Wolters
  • Jana Harzem
  • Michael Witthoeft
  • Alexander L Gerlach
  • Anna Pohl
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000616476000010&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1097/PSY.0000000000000884
eISSN
1534-7796
Externe Identifier
  • Clarivate Analytics Document Solution ID: QE8SS
  • PubMed Identifier: 33141791
ISSN
0033-3174
Ausgabe der Veröffentlichung
1
Zeitschrift
PSYCHOSOMATIC MEDICINE
Schlüsselwörter
  • idiopathic environmental intolerance attributed to electromagnetic fields
  • medically unexplained symptoms
  • somatic signal detection task
  • signal detection theory
  • predictive coding
  • EMF = electromagnetic field
  • IEI-EMF = idiopathic environmental intolerance attributed to electromagnetic fields
  • IQR = interquartile range
  • LED = light-emitting diode
  • Mdn = median
  • MUS = medically unexplained symptom
  • SD = standard deviation
  • SSDT = somatic signal detection task
Paginierung
94 - 100
Datum der Veröffentlichung
2021
Status
Published
Titel
Somatosensory Illusions Elicited by Sham Electromagnetic Field Exposure: Experimental Evidence for a Predictive Processing Account of Somatic Symptom Perception
Sub types
  • Article
Ausgabe der Zeitschrift
83

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:title>ABSTRACT</jats:title> <jats:sec> <jats:title>Objective</jats:title> <jats:p>According to the predictive processing theory of somatic symptom generation, body sensations are determined by somatosensory input and central nervous predictions about this input. We examined how expectations shape predictions and consequently bodily perceptions in a task eliciting illusory sensations as laboratory analogue of medically unexplained symptoms.</jats:p> </jats:sec> <jats:sec> <jats:title>Methods</jats:title> <jats:p>Using the framework of signal detection theory, the influence of sham Wi-Fi on response bias (<jats:italic toggle="yes">c</jats:italic>) and somatosensory sensitivity (<jats:italic toggle="yes">d</jats:italic>′) for tactile stimuli was examined using the somatic signal detection task (SSDT). A healthy student sample (<jats:italic toggle="yes">n</jats:italic> = 83) completed the SSDT twice (sham Wi-Fi on/off) in a randomized order after watching a film that promoted adverse health effects of electromagnetic fields.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>When expecting a Wi-Fi signal to be present, participants showed a significantly more liberal response bias <jats:italic toggle="yes">c</jats:italic> (<jats:italic toggle="yes">p</jats:italic> = .010, <jats:italic toggle="yes">ηp 2 </jats:italic> = 0.08) for tactile stimuli in the SSDT as evidence of a higher propensity to experience somatosensory illusions. No significant alteration of somatosensory sensitivity <jats:italic toggle="yes">d</jats:italic>′ (<jats:italic toggle="yes">p</jats:italic> = .76, <jats:italic toggle="yes">ηp 2 </jats:italic> &lt; 0.002) was observed.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions</jats:title> <jats:p>Negative expectations about the harmfulness of electromagnetic fields may foster the occurrence of illusory symptom perceptions via alterations in the somatosensory decision criterion. The findings are in line with central tenets of the predictive processing account of somatic symptom generation. This account proposes a decoupling of percept and somatosensory input so that perception becomes increasingly dependent on predictions. This biased perception is regarded as a risk factor for somatic symptom disorders.</jats:p> </jats:sec>
Autoren
  • Carolin Wolters
  • Jana Harzem
  • Michael Witthöft
  • Alexander L Gerlach
  • Anna Pohl
DOI
10.1097/psy.0000000000000884
eISSN
1534-7796
ISSN
0033-3174
Ausgabe der Veröffentlichung
1
Zeitschrift
Psychosomatic Medicine
Sprache
en
Online publication date
2020
Paginierung
94 - 100
Datum der Veröffentlichung
2021
Status
Published
Herausgeber
Ovid Technologies (Wolters Kluwer Health)
Herausgeber URL
http://dx.doi.org/10.1097/psy.0000000000000884
Datum der Datenerfassung
2023
Titel
Somatosensory Illusions Elicited by Sham Electromagnetic Field Exposure: Experimental Evidence for a Predictive Processing Account of Somatic Symptom Perception
Ausgabe der Zeitschrift
83

Datenquelle: Crossref

Abstract
<h4>Objective</h4>According to the predictive processing theory of somatic symptom generation, body sensations are determined by somatosensory input and central nervous predictions about this input. We examined how expectations shape predictions and consequently bodily perceptions in a task eliciting illusory sensations as laboratory analogue of medically unexplained symptoms.<h4>Methods</h4>Using the framework of signal detection theory, the influence of sham Wi-Fi on response bias (c) and somatosensory sensitivity (d') for tactile stimuli was examined using the somatic signal detection task (SSDT). A healthy student sample (n = 83) completed the SSDT twice (sham Wi-Fi on/off) in a randomized order after watching a film that promoted adverse health effects of electromagnetic fields.<h4>Results</h4>When expecting a Wi-Fi signal to be present, participants showed a significantly more liberal response bias c (p = .010, ηp2 = 0.08) for tactile stimuli in the SSDT as evidence of a higher propensity to experience somatosensory illusions. No significant alteration of somatosensory sensitivity d' (p = .76, ηp2 < 0.002) was observed.<h4>Conclusions</h4>Negative expectations about the harmfulness of electromagnetic fields may foster the occurrence of illusory symptom perceptions via alterations in the somatosensory decision criterion. The findings are in line with central tenets of the predictive processing account of somatic symptom generation. This account proposes a decoupling of percept and somatosensory input so that perception becomes increasingly dependent on predictions. This biased perception is regarded as a risk factor for somatic symptom disorders.
Addresses
  • From the Institute of Clinical Psychology and Psychotherapy (Wolters, Harzem, Gerlach, Pohl), University of Cologne, Cologne; and Institute of Clinical Psychology, Psychotherapy, and Experimental Psychopathology (Witthöft), Johannes Gutenberg University Mainz, Mainz, Germany.
Autoren
  • Carolin Wolters
  • Jana Harzem
  • Michael Witthöft
  • Alexander L Gerlach
  • Anna Pohl
DOI
10.1097/psy.0000000000000884
eISSN
1534-7796
Externe Identifier
  • PubMed Identifier: 33141791
Open access
false
ISSN
0033-3174
Ausgabe der Veröffentlichung
1
Zeitschrift
Psychosomatic medicine
Schlüsselwörter
  • Humans
  • Illusions
  • Touch
  • Electromagnetic Fields
  • Touch Perception
  • Medically Unexplained Symptoms
Sprache
eng
Medium
Print
Paginierung
94 - 100
Datum der Veröffentlichung
2021
Status
Published
Datum der Datenerfassung
2020
Titel
Somatosensory Illusions Elicited by Sham Electromagnetic Field Exposure: Experimental Evidence for a Predictive Processing Account of Somatic Symptom Perception.
Sub types
  • Research Support, Non-U.S. Gov't
  • Journal Article
Ausgabe der Zeitschrift
83

Datenquelle: Europe PubMed Central

Abstract
OBJECTIVE: According to the predictive processing theory of somatic symptom generation, body sensations are determined by somatosensory input and central nervous predictions about this input. We examined how expectations shape predictions and consequently bodily perceptions in a task eliciting illusory sensations as laboratory analogue of medically unexplained symptoms. METHODS: Using the framework of signal detection theory, the influence of sham Wi-Fi on response bias (c) and somatosensory sensitivity (d') for tactile stimuli was examined using the somatic signal detection task (SSDT). A healthy student sample (n = 83) completed the SSDT twice (sham Wi-Fi on/off) in a randomized order after watching a film that promoted adverse health effects of electromagnetic fields. RESULTS: When expecting a Wi-Fi signal to be present, participants showed a significantly more liberal response bias c (p = .010, ηp2 = 0.08) for tactile stimuli in the SSDT as evidence of a higher propensity to experience somatosensory illusions. No significant alteration of somatosensory sensitivity d' (p = .76, ηp2 < 0.002) was observed. CONCLUSIONS: Negative expectations about the harmfulness of electromagnetic fields may foster the occurrence of illusory symptom perceptions via alterations in the somatosensory decision criterion. The findings are in line with central tenets of the predictive processing account of somatic symptom generation. This account proposes a decoupling of percept and somatosensory input so that perception becomes increasingly dependent on predictions. This biased perception is regarded as a risk factor for somatic symptom disorders.
Autoren
  • Carolin Wolters
  • Jana Harzem
  • Michael Witthöft
  • Alexander L Gerlach
  • Anna Pohl
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/33141791
DOI
10.1097/PSY.0000000000000884
eISSN
1534-7796
Ausgabe der Veröffentlichung
1
Zeitschrift
Psychosom Med
Schlüsselwörter
  • Electromagnetic Fields
  • Humans
  • Illusions
  • Medically Unexplained Symptoms
  • Touch
  • Touch Perception
Sprache
eng
Country
United States
Paginierung
94 - 100
PII
00006842-202101000-00011
Datum der Veröffentlichung
2021
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2021
Titel
Somatosensory Illusions Elicited by Sham Electromagnetic Field Exposure: Experimental Evidence for a Predictive Processing Account of Somatic Symptom Perception.
Sub types
  • Journal Article
  • Research Support, Non-U.S. Gov't
Ausgabe der Zeitschrift
83

Datenquelle: PubMed

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