García-Soriano Gemma, Rosell-Clari Vicent, Serrano Miguel Ángel
Universidad de Valencia(Spain).
Span J Psychol. 2016 May 23;19:E25. doi: 10.1017/sjp.2016.27.
Different variables have been associated with the development/ maintenance of contamination-related obsessive-compulsive disorder (OCD), although the relevance of these factors has not been clearly established. The present study aimed to analyze the relevance and specificity of these variables. Forty-five women with high scores on obsessive-compulsive contamination symptoms (n = 16) or checking symptoms (n = 15), or non-clinical scores (n = 14) participated in a behavioral approach/avoidance task (BAT) with a contamination-OCD stimulus. Vulnerability variables and participants' emotional, cognitive, physiological and behavioral responses to the BAT were appraised. Results show that fear of illness was a relevant vulnerability variable specific to contamination participants (p = .001; η2 p = .291). Contamination participants responded with significantly higher subjective disgust (p =.001; η2 p = .269), anxiety (p = .001; η2 p = .297), urge to wash (p < .001; η2 p = 370), threat from emotion (p < .001; η2 p = .338) and contamination severity (p = .002; η2 p = .260) appraisals, and with lower behavioral approach (p = .008; η2 p = .208) than the other two groups. Moreover, contamination participants showed lower heart rate acceleration (p = .046; η2 p = .170) and higher contamination likelihood appraisals (p < .001; η2 p = .342) than the non-clinical group. Urge to wash was predicted by state disgust (R 2 change = .346) and threat from emotion (R 2 change = .088). These responses were predicted by general anxiety sensitivity (R 2 change = .161), disgust propensity (R 2 change = .255) and fear of illness (R 2 change = .116), but not by other vulnerability variables such as dysfunctional beliefs about thoughts (Responsibility and Overestimation of threat) or disgust sensitivity. State disgust, threat from disgust, anxiety sensitivity and fear of illness were found to be the most relevant variables in contamination symptoms.
尽管尚未明确确定这些因素的相关性，但不同变量已被认为与污染相关的强迫症（OCD）的发展/维持有关。本研究旨在分析这些变量的相关性和特异性。45名在强迫污染症状（n = 16）或检查症状（n = 15）上得分较高，或非临床得分（n = 14）的女性参与了一项针对污染型强迫症刺激的行为接近/回避任务（BAT）。评估了易感性变量以及参与者对BAT的情绪、认知、生理和行为反应。结果表明，对疾病的恐惧是污染组参与者特有的相关易感性变量（p = .001；η2 p = .291）。与其他两组相比，污染组参与者在主观厌恶（p = .001；η2 p = .269）、焦虑（p = .001；η2 p = .297）、洗涤冲动（p < .001；η2 p = .370）、情绪威胁（p < .001；η2 p = .338）和污染严重程度（p = .002；η2 p = .260）评估方面的反应明显更高，而行为接近程度更低（p = .008；η2 p = .208）。此外，与非临床组相比，污染组参与者的心率加速较低（p = .046；η2 p = .170），污染可能性评估较高（p < .001；η2 p = .342）。洗涤冲动由状态厌恶（R 2变化 = .346）和情绪威胁（R 2变化 = .088）预测。这些反应由一般焦虑敏感性（R 2变化 = .161）、厌恶倾向（R 2变化 = .255）和对疾病的恐惧（R 2变化 = .116）预测，但不由其他易感性变量如对思维的功能失调信念（责任和威胁高估）或厌恶敏感性预测。状态厌恶、厌恶威胁、焦虑敏感性和对疾病的恐惧被发现是污染症状中最相关的变量。
