A case series to investigate food-related fear learning and extinction using in vivo food exposure in anorexia nervosa: A clinical application of the inhibitory learning framework
A case series to investigate food-related fear learning and extinction using in vivo food exposure in anorexia nervosa: A clinical application of the inhibitory learning framework
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DOI：
10.1002/erv.2639
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发表时间：
2019-03-01
影响因子：
5.3
通讯作者：
Treasure, Janet
中科院分区：
文献类型：
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作者：
Cardi, Valentina;Leppanen, Jenni;Treasure, Janet
目的 神经性厌食症的特点是严重营养不良。这项研究检验了对食物的恐惧是一种习得行为的假设，并评估了逐渐接触食物以改善神经性厌食症患者饮食行为的可行性和有效性。方法 招募 18 名女性并完成基线自我报告。他们接受了有关早期饮食经历和与食物相关的焦虑的发展的采访。参与者接受了八次体内食物暴露。结果 研究结果表明，对食物的恐惧是一种习得行为，与饮食和安全行为后果的灾难性想法有关。除一次疗程外，患者在所有疗程中至少消耗了一半所选食物。体重指数增加，食物限制、饮食担忧、饮食失调相关的关注和整体焦虑减少（中/大 ES）。结论 研究结果证实了基于焦虑的神经性厌食症模型，并支持使用基于暴露的方案来消除与食物相关的恐惧的相关性。
Objective Anorexia nervosa is characterized by severe malnutrition. This study tested the hypothesis that fear of food is a learned behaviour and evaluated the feasibility and effectiveness of gradual exposure to food to improve eating behaviour in people with anorexia nervosa. Methods Eighteen women were recruited and completed baseline self-reports. They were interviewed regarding early experiences of eating and the development of food-related anxiety. Participants received eight sessions of in vivo food exposure. Results Findings indicated that fear of food is a learned behaviour, associated with catastrophic thoughts around the consequences of eating and safety behaviours. Patients consumed at least half of the food item selected in all but one session. Body mass index increased, and food restriction, eating concern, eating disorder-related preoccupations, and overall anxiety reduced (medium/large ES). Conclusion Findings corroborate an anxiety-based model of anorexia nervosa and support the relevance of targeting food-related fears using exposure-based protocols.