Macquarie University; Centre for Emotional Health, Macquarie University.
Macquarie University; Centre for Emotional Health, Macquarie University.
Behav Ther. 2020 Jan;51(1):123-134. doi: 10.1016/j.beth.2019.05.010. Epub 2019 May 24.
Evidence from analogue samples suggests that deficits in emotional functioning, namely elevated emotional reactivity and distress intolerance, are implicated in the development and maintenance of hoarding disorder. We aimed to extend previous research in this area by investigating emotional reactivity and distress intolerance in a sample of individuals diagnosed with hoarding disorder (n = 24) in comparison to clinical controls (n = 21) and nonclinical community controls (n = 26) using a combination of self-report, physiological, and behavioral measures. We found that trait distress intolerance was significantly and independently associated with greater hoarding severity. The hoarding and clinical control groups reported more trait emotional reactivity and distress intolerance than the community control group, but did not differ from each other on these traits. The hoarding group reported more subjective distress before beginning a frustrating behavioral task, but did not evidence more physiological arousal. Moreover, the hoarding group experienced similar increases in distress during the task and did not differ from either group in regard to time persisting on this task. The clinical control group, however, terminated the frustrating task significantly faster than the community control group, who tended to persist until the task timed out. Lastly, trait distress intolerance evidenced a small-to-moderate but nonstatistically significant independent relationship with task persistence time. Given the desynchrony between subjective distress and physiological arousal, we encourage researchers to utilize multimodal assessment in the future. We also suggest that clinicians start to use behavioral experiments, as has been done with other psychological disorders, to improve distress intolerance among persons who experience hoarding disorder.
来自模拟样本的证据表明，情绪功能障碍，即情绪反应升高和痛苦耐受力降低，与囤积障碍的发展和维持有关。我们旨在通过使用自我报告、生理和行为测量相结合的方法，在一组被诊断患有囤积障碍的个体（n=24）中，以及在临床对照组（n=21）和非临床社区对照组（n=26）中，扩展该领域的先前研究。我们发现特质痛苦耐受力与更高的囤积严重程度显著且独立相关。囤积症组和临床对照组比社区对照组报告更多的特质情绪反应和痛苦耐受力，但在这些特质上彼此没有差异。囤积症组在开始一项令人沮丧的行为任务之前报告了更多的主观痛苦，但没有表现出更多的生理唤醒。此外，囤积症组在任务期间经历了相似程度的痛苦增加，并且在坚持任务的时间上与任何一组都没有差异。然而，临床对照组完成令人沮丧的任务的速度明显快于社区对照组，后者倾向于坚持到任务超时。最后，特质痛苦耐受力与任务坚持时间之间存在小到中等但无统计学意义的独立关系。鉴于主观痛苦和生理唤醒之间的不同步，我们鼓励研究人员在未来使用多模态评估。我们还建议临床医生开始使用行为实验，就像其他心理障碍一样，以提高患有囤积障碍的人的痛苦耐受力。
