Impaired Central Processing of Emotional Faces in Anorexia Nervosa
Impaired Central Processing of Emotional Faces in Anorexia Nervosa
复制标题
神经性厌食症患者情绪面孔的中央处理受损
作者：
O. Pollatos;B. Herbert;R. Schandry;K. Gramann
目的：阐明情绪面孔分类与进食障碍患者中枢处理受损之间的潜在关系，并探讨述情障碍和抑郁在这种关系中的潜在中介作用。研究方法：在12名女性和匹配的健康对照者中评估了情绪面孔的视觉诱发电位（VEP）和分类性能。结果如下：与健康对照组相比，神经性厌食症患者的情绪面孔处理没有表现出调制，并显示出显着增加的N200振幅响应于所有的情绪类别和减少VEP响应于不愉快的情绪面孔在P300的时间范围。他们在情感人脸识别方面也犯了更多的错误，特别是对于中性，悲伤和厌恶的内容。结论：神经性厌食症患者和正常人在面孔加工中的诱发电位和情绪识别表现存在显著差异。大脑动力学的差异可能会导致面部表情的正确识别困难，社会功能的缺陷，进而导致饮食失调。艾德=进食障碍; ERP =事件相关电位; VEP =视觉诱发电位; AN =神经性厌食症; MDD =重度抑郁症; EEG =脑电图; TAS =多伦多述情障碍量表; BMI =体重指数; BDI =贝克抑郁量表; STAI =状态特质焦虑量表。
Objectives: To elucidate the potential relationship between classification of emotional faces and impaired central processing in eating disorders and to investigate the potential mediatory role of alexithymia and depression in this relationship. Methods: Visual-evoked potentials (VEPs) to emotional faces and classification performance were assessed in 12 anorexic females and matched healthy controls. Results: Patients with anorexia nervosa showed no modulation of emotional face processing and displayed significantly increased N200 amplitudes in response to all emotional categories and decreased VEPs in response to unpleasant emotional faces in the P300 time range as compared with healthy controls. They also made more mistakes in emotional face recognition, in particular, for neutral, sad, and disgusted content. Conclusions: There are marked differences in evoked potentials and emotion recognition performances of patients with anorexia nervosa and controls in facial processing. Differences in brain dynamics might contribute to difficulties in the correct recognition of facially expressed emotions, deficits in social functioning, and in turn the maintenance of eating disorders. ED = eating disorder; ERP = event-related potential; VEP = visual-evoked potential; AN = anorexia nervosa; MDD = major depressive disorder; EEG = electroencephalography; TAS = Toronto Alexithymia Scale; BMI = body mass index; BDI = Beck Depression Inventory; STAI = State Trait Anxiety Inventory.
DOI：
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发表时间：
2007
期刊：
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影响因子：
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作者：
Tracy A. Dennis;Chao-Cheng Chen
通讯作者：
Tracy A. Dennis;Chao-Cheng Chen
影响因子：
3.7
作者：
Folstein, Jonathan R.;Van Petten, Cyma;Rose, Scott A.
通讯作者：
Rose, Scott A.