1. The Role of Disgust and Threat in Contamination-Related Obsessive–Compulsive Disorder
- Author
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Leanne Mulheron and Mairwen K. Jones
- Subjects
050103 clinical psychology ,05 social sciences ,Theoretical models ,Experimental and Cognitive Psychology ,Mean age ,Disgust ,030227 psychiatry ,03 medical and health sciences ,Clinical Psychology ,0302 clinical medicine ,Obsessive compulsive ,medicine ,Anxiety ,0501 psychology and cognitive sciences ,medicine.symptom ,Psychology ,Task avoidance ,Clinical psychology - Abstract
Theoretical models suggest that the emotion disgust or threat overestimates are important in the aetiology and maintenance of contamination-based obsessive–compulsive disorder. In the current study, both threat and disgust were manipulated and 115 non-clinical participants (mean age 20.46 years, 94 females) were randomly allocated to one of four conditions: high-disgust/low-threat (n = 29), high-disgust/high-threat (n = 29), low-disgust/low-threat (n = 27), and low-disgust/high-threat (n = 30). Participants completed a hierarchical Behavioural Avoidance Task (BAT). Those in the high-threat and high-disgust conditions completed less BAT steps and showed more latency to begin each step than those in the low-threat and low-disgust conditions. A significant interaction effect was observed for the high-disgust/high-threat condition as significantly more task avoidance was found. However, handwashing duration was not significantly different between the high and low-disgust conditions or the high and low-threat conditions. The overall low mean washing duration of 30 s possibly due to the testing conditions and/or the ethnic heterogeneity of the sample may account for these results. There were also no significant differences in the level of anxiety for participants in the high-threat compared with the low-threat conditions. It is possible that anxiety remained relatively low across conditions as a result of the graduated BAT. Future research and theoretical and clinical implications are discussed.
- Published
- 2021