Facial affect recognition in anorexia nervosa: is obsessionality a missing piece of the puzzle?
Facial affect recognition in anorexia nervosa: is obsessionality a missing piece of the puzzle?
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DOI：
10.3109/00048674.2010.524625
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发表时间：
2010-12-01
影响因子：
4.6
通讯作者：
Tchanturia, Kate
中科院分区：
文献类型：
--
作者：
Castro, Liliana;Davies, Helen;Tchanturia, Kate
目的：社会情感困难被认为是饮食失调的重要维持因素。多项研究指出神经性厌食症 (AN) 患者面部情感识别存在缺陷。然而，这些研究大多数未能控制合并症及其对情绪处理的影响。本研究旨在探讨 AN 患者如何识别人脸上的快乐和悲伤，并控制不同的合并症，即焦虑、抑郁和强迫症状。方法：30 名 AN 患者和 40 名健康参与者完成了面部情绪识别任务。该任务测量了对不同持续时间（500 毫秒、2000 毫秒）呈现的悲伤和快乐面孔的辨别准确性、响应偏差和响应时间。探讨面部情感识别与临床症状和智商之间的关联。结果：回归分析显示，500 毫秒呈现的悲伤面孔的辨别准确性与 AN 诊断、体重指数和强迫症状显着相关。然而，强迫症状的水平是对短暂出现的悲伤面孔的辨别力较差的最强预测因素。结论：我们的结果支持之前的研究，报告 AN 中的情绪处理缺陷，而强迫在这种缺陷中发挥着关键作用。
Objective: Socio-emotional difficulties are thought to be important maintaining factors of eating disorders. Several studies point to deficits in facial affect recognition in anorexia nervosa (AN). However, the majority of these studies fail to control for comorbidity and its effect on emotional processing. This study aims to explore how patients with AN recognize happiness and sadness in human faces, controlling for different comorbidities, namely anxiety, depression, and obsessive-compulsive symptoms.Methods: Thirty patients with AN, and 40 healthy participants completed a facial emotion recognition task. This task measured discrimination accuracy, response bias and response time towards sad and happy faces presented at different durations (500 ms, 2000 ms). The associations between facial affect recognition and clinical symptoms and intelligence quotient were explored.Results: Regression analysis showed that discrimination accuracy of sad faces presented for 500 ms was significantly associated with AN diagnosis, body mass index, and Obsessive- compulsive symptoms. However, the level of Obsessive-compulsive symptoms was the strongest predictor of a poor discrimination of briefly presented sad faces.Conclusions: Our results support previous studies that report emotional processing deficits in AN with obsessionality playing a pivotal role in this deficit.