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The Mediating Roles of Disgust Sensitivity and Danger Expectancy in Relation to Hand Washing Behaviour

Published online by Cambridge University Press:  02 December 2010

Susan J. Thorpe ,
Julie Barnett ,
Katy Friend  and
Kate Nottingham
Susan J. Thorpe*
Affiliation:
University of Surrey, Guildford, UK
Julie Barnett
Affiliation:
Brunel University, Uxbridge, UK
Katy Friend
Affiliation:
University of Surrey, Guildford, UK
Kate Nottingham
Affiliation:
University of Surrey, Guildford, UK
*
Reprint requests to S. J. Thorpe, Department of Psychology, Faculty of Arts and Human Sciences, University of Surrey, Guildford GU2 7XH, UK. E-mail: [email protected]
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Abstract

Background: Recent interest in the role of vulnerability factors in obsessional washing has suggested that disgust sensitivity, danger expectancy and health anxiety may be of interest. Aims: This study explores the differential impact of these factors on both behavioural and cognitive measures of washing behaviour and is based on a replication of the Jones and Menzies (1997) experiment, during which participants immersed their hands in a noxious compound while rating themselves on a range of measures: the time they subsequently took to wash their hands was measured and danger expectancies were found to be the best predictor of this. Method: The present study added measures of disgust sensitivity and health anxiety to this experimental methodology while removing factors they found to be of little import to compulsive washing. Thirty non-clinical participants took part. Results: Results confirmed that disgust sensitivity was related to the behavioural measure of washing time, but that this relationship was almost entirely mediated by the danger expectancy concerning judgements of severity of consequent disease. However, a different pattern emerged when the outcome measure was questionnaire based: danger expectancy was not at all related to this. Disgust sensitivity mediated the relationship between health anxiety and scores on a questionnaire measure of washing compulsions. Interestingly, these scores were not related to the behavioural measure of washing time. Conclusions: The implications of these relationships to the further development of subtypes of Obsessive Compulsive Disorder (OCD) are discussed.

Keywords

Disgustdanger expectancycontamination fearcompulsive washingobsessive compulsive disorder
Type
Research Article
Information
Behavioural and Cognitive Psychotherapy , Volume 39 , Issue 2 , March 2011 , pp. 175 - 190
Copyright
Copyright © British Association for Behavioural and Cognitive Psychotherapies 2010

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