Which characteristic is most likely to indicate a binge-eating disorder?

Question

BlackTom AI · Accepted Answer

Binge-eating disorder involves recurrent episodes of consuming an objectively large amount of food in a discrete period with a sense of loss of control. Key DSM-5 features include: (1) eating much more rapidly than normal, (2) eating until uncomfortably full, (3) eating large amounts when not physically hungry, (4) eating alone because of embarrassment about how much one is eating, and (5) feeling disgusted, depressed, or very guilty afterward. These features distinguish binge-eating disorder from normal overeating and from other eating disorders.

Step-by-step reasoning:
1. Identify hallmark behaviors: The disorder centers on repeated binge episodes with loss of control and marked distress. Behavioral signs often visible to others include rapid consumption, hiding eating, and secrecy.
2. Match options to hallmark signs:
   - “Eating alone” corresponds directly to DSM-5 item (4): many individuals hide binges due to shame or embarrassment, so eating alone is a strong indicator.
   - “Purging” (self-induced vomiting, laxative use) is a compensatory behavior used to counteract intake and is a defining feature of bulimia nervosa (or anorexia binge/purge subtype), not binge-eating disorder where compensatory behaviors are absent.
   - “Eating slowly” contrasts with typical binge behavior; binges are frequently characterized by eating much more rapidly than normal.
   - “Eating when hungry” describes normal, regulated eating rather than pathological bingeing.

Why the correct answer is correct:
Eating alone arises because people with binge-eating disorder often feel ashamed or embarrassed about the quantity of food consumed and therefore conceal their behavior. This secrecy is a clinically recognized indicator of binge episodes.

Why others are incorrect:
Purging signals bulimia, not binge-eating disorder. Eating slowly is inconsistent with binge episodes. Eating when hungry is normal and not diagnostic.

Conclusion: The best choice is “eating alone,” which matches the provided correct answer.

Which characteristic is most likely to indicate a binge-eating disorder?单项选择题

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