期刊
BEHAVIOUR CHANGE
卷 38, 期 1, 页码 40-59出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/bec.2021.1
关键词
OCD; anxiety; disgust; threat
The study found that participants in the high-disgust and high-threat conditions showed higher task avoidance and longer latency to begin each step. However, handwashing duration did not significantly differ between high-disgust and low-disgust conditions or high-threat and low-threat conditions. The shorter handwashing duration and relatively low anxiety levels may account for these results.
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.
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