RT Journal Article T1 Differences in clinical intrusive thoughts between obsessive-compulsive disorder, generalized anxiety disorder, and hypochondria. A1 Romero-Sanchiz, Pablo A1 Nogueira-Arjona, Raquel A1 Godoy-Avila, Antonio A1 Gavino-Lazaro, Aurora A1 Freeston, Mark H K1 Generalized anxiety disorder K1 Hypochondriasis K1 Illness intrusions K1 Obsessions K1 Obsessive-compulsive disorder K1 Worries AB Differences and similarities between intrusive thoughts typical of obsessive-compulsive disorder, generalized anxiety disorder, and hypochondriasis are relevant for their differential diagnosis, formulation, and psychological treatment. Previous research in non-clinical samples pointed out the relevance of some process variables, such as responsibility, guilt, or neutralization strategies. This research is aimed to investigate the differences and similarities between clinical obsessions, worries, and illness intrusions in some of these process variables. A second aim is to identify models based on these variables that could reliably differentiate between them. Three groups of patients with obsessive-compulsive disorder (n = 35; 60% women, mean age 38.57), generalized anxiety disorder (n = 36; 61.1% women, mean age 41.50), and hypochondriasis (n = 34; 70.6% women, mean age 31.59) were evaluated using the Cognitive Intrusions Questionnaire-Transdiagnostic Version (Romero-Sanchiz, Nogueira-Arjona, Godoy-Ávila, Gavino-Lázaro, & Freeston, ). The results showed that some appraisals (e.g., responsibility or egodystonicity), emotions (e.g., guilt or insecurity), neutralization strategies, and other variables (e.g., verbal content or trigger from body sensation) are relevant for the discrimination between obsessions, worries, and illness intrusions. The results also showed 3 stable models based on these variables for the discrimination between these thoughts. The implication of these results in the diagnosis, formulation, and psychological treatment of obsessive-compulsive disorder, generalized anxiety disorder, and hypochondriasis is discussed. PB John Wiley & Sons YR 2017 FD 2017-06-15 LK http://hdl.handle.net/10668/11443 UL http://hdl.handle.net/10668/11443 LA en NO Romero-Sanchiz P, Nogueira-Arjona R, Godoy-Ávila A, Gavino-Lázaro A, Freeston MH. Differences in clinical intrusive thoughts between obsessive-compulsive disorder, generalized anxiety disorder, and hypochondria. Clin Psychol Psychother. 2017 Nov;24(6):O1464-O1473 DS RISalud RD Apr 19, 2025