TY - JOUR
T1 - Disgust and fear responding in contamination-based obsessive-compulsive disorder during pictorial exposure
AU - Broderick, Joshua
AU - Grisham, Jessica R.
AU - Weidemann, Gabrielle
PY - 2013
Y1 - 2013
N2 - The emotion of disgust has been implicated in the development and maintenance of contamination-based obsessive-compulsive disorder (OCD). In the present study nonclinical participants with high (n=26) and low(n=28) levels of OCD contamination symptoms were exposed to 2 categories of disgust stimuli (blood injury and body waste) across 4 blocks using standardized disgust images. Self-report disgust and fear were recorded, as well as cardiovascular heart rate. In both groups, an initial primary disgust reaction was observed. Self-report disgust and fear, but not heart rate deceleration, was greater in the high symptom group. The high symptom group showed reductions in heart rate deceleration, whereas the low symptom group did not. Significant differences in self-report changes across time were observed between the groups, with fear increasing to a greater extent for high contamination fearful individuals when viewing body waste images. The implications of these findings for theoretical models and clinical treatment of OCD with prominent contamination symptoms are discussed.
AB - The emotion of disgust has been implicated in the development and maintenance of contamination-based obsessive-compulsive disorder (OCD). In the present study nonclinical participants with high (n=26) and low(n=28) levels of OCD contamination symptoms were exposed to 2 categories of disgust stimuli (blood injury and body waste) across 4 blocks using standardized disgust images. Self-report disgust and fear were recorded, as well as cardiovascular heart rate. In both groups, an initial primary disgust reaction was observed. Self-report disgust and fear, but not heart rate deceleration, was greater in the high symptom group. The high symptom group showed reductions in heart rate deceleration, whereas the low symptom group did not. Significant differences in self-report changes across time were observed between the groups, with fear increasing to a greater extent for high contamination fearful individuals when viewing body waste images. The implications of these findings for theoretical models and clinical treatment of OCD with prominent contamination symptoms are discussed.
KW - averson
KW - contamination
KW - heart rate
KW - obsessive-compulsive disorder
UR - http://handle.uws.edu.au:8081/1959.7/523726
U2 - 10.1016/j.beth.2012.05.005
DO - 10.1016/j.beth.2012.05.005
M3 - Article
SN - 0005-7894
VL - 44
SP - 27
EP - 38
JO - Behavior Therapy
JF - Behavior Therapy
IS - 1
ER -