Physiological, emotional and neural responses to visual stimuli in eating disorders: a review

被引:8
|
作者
Burmester, Victoria [1 ]
Graham, Esme [1 ]
Nicholls, Dasha [1 ]
机构
[1] Imperial Coll London, Dept Brain Sci, Div Psychiat, Du Cane Rd, London W12 0NN, England
关键词
Emotional; Physiological; Neuroimaging; Anorexia nervosa; Bulimia nervosa; Binge eating disorder; Shape; weight; Food; Visual stimuli; Images; HEART-RATE-VARIABILITY; ANOREXIA-NERVOSA PATIENTS; BODY-IMAGE DISTORTION; BULIMIA-NERVOSA; FOOD CUES; ATTENTIONAL BIAS; AMYGDALA ACTIVATION; AUTONOMIC AROUSAL; VIRTUAL-REALITY; CALORIE FOOD;
D O I
10.1186/s40337-021-00372-1
中图分类号
B849 [应用心理学];
学科分类号
040203 ;
摘要
BackgroundOverconcern with food and shape/weight stimuli are central to eating disorder maintenance with attentional biases seen towards these images not present in healthy controls. These stimuli trigger changes in the physiological, emotional, and neural responses in people with eating disorders, and are regularly used in research and clinical practice. However, selection of stimuli for these treatments is frequently based on self-reported emotional ratings alone, and whether self-reports reflect objective responses is unknown.Main bodyThis review assessed the associations across emotional self-report, physiological, and neural responses to both food and body-shape/weight stimuli in people with anorexia nervosa (AN), bulimia nervosa (BN) and binge eating disorder (BED). For food stimuli, either an aversive or lack of physiological effect was generated in people with AN, together with a negative emotional response on neuroimaging, and high subjective anxiety ratings. People with BN showed a positive self-rating, an aversive physiological reaction, and a motivational neural response. In BED, an aversive physiological reaction was found in contrast to motivational/appetitive neural responses, with food images rated as pleasant. The results for shape/weight stimuli showed aversive responses in some physiological modalities, which was reflected in both the emotional and neural responses, but this aversive response was not consistent across physiological studies.ConclusionsShape/weight stimuli are more reliable for use in therapy or research than food stimuli as the impact of these images is more consistent across subjective and objective responses. Care should be taken when using food stimuli due to the disconnect reported in this review.
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页数:16
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