Schuman Isabel, Wang Jingyi, Ballard Ian C, Lapate Regina C
Department of Psychological & Brain Sciences, University of California, Santa Barbara, Santa Barbara, USA.
Department of Psychology, University of California, Riverside, Riverside, USA.
Sci Rep. 2025 Feb 6;15(1):4508. doi: 10.1038/s41598-024-80597-7.
Anorexia nervosa is a severe eating disorder characterized by food restriction in service of a future goal: thinness and weight loss. Prior work suggests altered intertemporal decision-making in this disorder, with more farsighted decisions-i.e. reduced delay discounting-in patients with acute anorexia nervosa. Future-oriented cognition, such as frequent prospective future thinking in daily life, promotes farsighted decision making. However, whether temporal orientation is altered in anorexia nervosa, potentially contributing to reduced delay discounting in this population, remains unclear. We measured delay discounting behavior, anorexia nervosa symptomatology, and temporal orientation in a large sample of never-diagnosed individuals. We found that higher anorexia nervosa symptomatology was associated with reduced delay discounting. Anorexia nervosa symptoms were also correlated with increased future-oriented cognition. Moreover, future-oriented cognition mediated the difference in delay-discounting behavior between high and low anorexia nervosa symptom groups. These results were unrelated to subjective time perception and independent of mood and anxiety symptomatology. Collectively, these findings suggest that future-oriented cognition may be a cognitive mechanism underlying altered intertemporal decision making in anorexia nervosa.
神经性厌食症是一种严重的饮食失调症,其特征是为了实现一个未来目标而限制饮食:变瘦和减重。先前的研究表明,这种疾病存在跨期决策改变,急性神经性厌食症患者会做出更具远见的决策,即减少延迟折扣。面向未来的认知,比如在日常生活中频繁进行前瞻性的未来思考,会促进有远见的决策。然而,神经性厌食症患者的时间取向是否发生了改变,这可能导致该人群延迟折扣减少,目前仍不清楚。我们在大量从未被诊断过的个体样本中测量了延迟折扣行为、神经性厌食症症状和时间取向。我们发现,较高的神经性厌食症症状与减少的延迟折扣有关。神经性厌食症症状也与增加的面向未来的认知相关。此外,面向未来的认知介导了高神经性厌食症症状组和低神经性厌食症症状组之间延迟折扣行为的差异。这些结果与主观时间感知无关,且独立于情绪和焦虑症状。总的来说,这些发现表明,面向未来的认知可能是神经性厌食症跨期决策改变背后的一种认知机制。
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