Department of Psychology, University of Arkansas, Fayetteville, AR 72701, USA.
Anxiety Stress Coping. 2011 Mar;24(2):157-65. doi: 10.1080/10615806.2010.506953.
Recent research has highlighted the central role of disgust in the etiology and maintenance of contamination aversion (CA). Data would also suggest that, although amendable to the treatment of choice for CA (exposure and response prevention [ERP]), disgust is resistant to habituation. However, with regard to CA, it is not yet known if disgust's resistance to habituation is an artifact of the emotion or the disorder. Specifically, research has not yet indicated if severity of CA moderates the effect of ERP on disgust. Utilizing an undergraduate convenience sample (n=33), the present study compared emotional responding (disgust and fear) with repeated exposure to a disgusting contamination-relevant stimulus between participants who are high in contamination aversion (HCA; n=17) and low in contamination aversion (LCA; n=16). Results indicated that, habituation of disgust was slower than fear within the HCA group but not the LCA group. Contrasts revealed that the decay of fear across trials was faster for HCA participants when compared with LCA participants, although decay of disgust was similar between groups. These results indicate that habituation of disgust is slower than fear when elevated CA is present.
最近的研究强调了厌恶在污染回避（CA）的病因和维持中的核心作用。数据还表明，尽管可以采用 CA 的治疗选择（暴露和反应预防[ERP]）来治疗，但厌恶不易习惯化。然而，关于 CA，厌恶的习惯化抵抗是否是情绪或障碍的一种表现尚不清楚。具体来说，研究尚未表明 CA 的严重程度是否会调节 ERP 对厌恶的影响。本研究利用本科生便利样本（n=33），比较了在高污染回避（HCA；n=17）和低污染回避（LCA；n=16）参与者中，对与污染相关的令人厌恶的刺激进行重复暴露时的情绪反应（厌恶和恐惧）。结果表明，在 HCA 组中，厌恶的习惯化速度比恐惧慢，但在 LCA 组中则不然。对比显示，与 LCA 参与者相比，HCA 参与者的恐惧在整个试验中的衰减速度更快，尽管两组的厌恶衰减速度相似。这些结果表明，当 CA 升高时，厌恶的习惯化速度比恐惧慢。
