Cited by 30Psychosomatic Disorders and Their TreatmentsAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesCOVID-19 and Mental Health

Illness‐related intrusive thoughts and illness anxiety disorder

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Arnáez, Sandra, García‐Soriano, Gemma, López‐Santiago, Jose, Belloch, Amparo·2021·Psychology and Psychotherapy: Theory, Research and Practice

Abstract

Introduction: Intrusive thoughts about health threats (illness‐ITs) are a potential cognitive risk factor for the development and maintenance of illness anxiety disorder (IAD). This study analyzes the dimensionality of illness‐ITs from normalcy to psychopathology, and it evaluates whether the appraisals instigated by the Its mediate between these thoughts and IAD symptoms. Methods: Two groups of individuals participated in the study and completed the Illness Intrusive Thoughts Inventory and the Whiteley Index. The first group was composed of 446 non‐clinical community participants. Of them, 264 individuals (68.6% women; M age = 30.03 [ SD = 13.83]) reported having experienced an upsetting illness‐IT in the past three months and were then included in the main analyses. The second group included 31 patients with a current main diagnosis of IAD based on DSM‐5 criteria (51.6% women; M age = 32.74 [ SD = 9.69]). Their severity was assessed with the Hypochondriasis Yale‐Brown Obsessive‐Compulsive Scale ‐Modified version, with scores ranging from 15 to 58 ( M = 46.12, SD = 9.41). Results: Illness‐ITs are common in both non‐clinical individuals and in patients with IAD, and they instigate dysfunctional emotional, cognitive, and behavioral consequences, although with greater intensity in patients than in non‐clinical individuals. The relationship between illness‐ITs and IAD is mediated by overestimation of threat and thought‐action fusion‐probability appraisals. Conclusion: Illness‐ITs are a dimensional cognitive experience. The way they are appraised facilitates their escalation into symptoms of IAD. Practitioner points: Provides support for the cognitive explanatory model of IAD and its usefulness in clinical practice. Indicates that the way people interpret and react to naturally occurring intrusive thoughts about illness seems to be a vulnerability marker for developing an illness anxiety disorder. Emphasizes that the meaning that patients with IAD ascribe to their intrusive thoughts about illnesses must be a main target in the cognitive‐behavioral treatment of IAD. Suggests that the importance of intrusive thoughts in IAD does not lie in the frequency with which they are experienced, but in the way, they are appraised/interpreted, which is what determines whether they become a clinically significant symptom. Indicates that the relationship between illness intrusive thoughts and IAD symptoms in non‐clinical individuals is based on: overestimating the negative consequences of experiencing an illness intrusive thought; and the appraisal that having such a thought would increase its likelihood of coming true. Shows that the frequency of illness‐related intrusive cognitions is associated with worse cognitive and behavioral consequences.

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  • Health-anxious individuals experience more frequent and intense illness-related intrusive thoughts and demonstrate a selective negative interpretation bias of these thoughts or sensations.

    “Health-anxious individuals have also been shown to experience more frequent and intense illness-related intrusive thoughts [47, 48], and to demonstrate a selective negative interpretation bias of these thoughts or sensations [49].”

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  1. Pascual-Vera, B. & Belloch, A. (2018a). The transdiagnostic nature of mental intrusions: A review and data-driven proposal. Revista de Psicopatología y Psicología Clínica, 23, 135-148.

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Authors
Arnáez, S., García‐Soriano, G., López‐Santiago, J., & Belloch, A.
Affiliations
  • Universitat de València (ES)
  • Mental Health Unit University Hospital of Albacete Spain
Corresponding author
García‐Soriano, Gemma
Venue
Psychology and Psychotherapy: Theory, Research and Practice
Publisher
Wiley
Published
2020-01-20
Volume
94
Issue
1
Pages
63-80
ISSN
  • 1476-0835 (ISSN-L)
  • 2044-8341
OpenAlex
W3000047017
Cited by
30
References
60
Citations by year
2026: 5 · 2025: 7 · 2024: 8 · 2023: 4 · 2022: 3 · 2021: 3
FWCI
1.81
Type
journal article
Language
en
Open access
Locations
  • Psychology and Psychotherapy Theory Research and Practice (publishedVersion)
  • PubMed (publishedVersion)
  • Repository of Digital Objects for Teaching Research and Culture (University of Valencia) (submittedVersion, cc-by-nc)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Social Sciences › Psychology › Clinical Psychology › COVID-19 and Mental Health
Keywords
health anxiety, thought-action fusion, cognitive appraisal, vulnerability indicators, cognitive behavioral therapy, Whiteley Index
MeSH terms
Adult, Anxiety Disorders, Mental Disorders, Cognition, Female, Humans, Hypochondriasis, Male, Cognitive Behavioral Therapy

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