To the Editor Amlung and colleagues¹ published a meta-analysis of delay discounting (DD), a behavioral measure of impulsivity and self-control, including 57 effect sizes from 43 studies across 8 psychiatric diagnostic categories. Results indicated a greater preference for smaller immediate monetary rewards (ie, more impulsive decision-making) in 6 conditions (major depression, schizophrenia, bipolar disorder, borderline personality disorder, bulimia nervosa, and binge-eating disorder) compared with controls but greater preference for larger delayed rewards (ie, more self-controlled choice) in anorexia nervosa. The findings have important implications for the National Institute of Mental Health’s Research Domain Criteria initiative, which seeks to elucidate neurocognitive mechanisms that transcend categorical diagnoses.

致编辑Amlung及其同事¹发表了延迟贴现（DD）的荟萃分析，它是一种对冲动和自我控制的行为量度，包括来自8种精神病学诊断类别的43项研究的57种效应量。结果表明，与对照组相比，在6种情况下（重度抑郁症，精神分裂症，躁郁症，边缘性人格障碍，神经性贪食症和暴饮暴食症），患者更倾向于较小的即时金钱奖励（即，更冲动的决策）。对于神经性厌食症有更大的延迟奖励（即更多的自我控制的选择）。这些发现对美国国家心理健康研究所的“研究领域标准”计划具有重要意义，该计划旨在阐明超越分类诊断的神经认知机制。