疲劳症状在严重抑郁症中影响基于努力的决策
Grace E Steward1, Adam J Culbreth2, Fernando S Goes3
1Department of Biomedical Engineering, Johns Hopkins University, School of Medicine, Baltimore, Maryland.
medRxiv : the preprint server for health sciences
|November 24, 2025
概括
患有严重抑郁症 (MDD) 的人更倾向于以疲劳为动力较低,回报较低的任务. 这种疲劳显著影响他们关于认知努力的决策,比抑郁情绪症状更重要.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 行为经济学是一种行为经济学.
背景情况:
- 疲劳是主要抑郁症 (MDD) 的主要症状之一.
- 在健康个体中,疲劳与减少努力的意愿有关.
- 在MDD中,疲劳对基于努力的决策的影响仍未得到充分探索.
研究的目的:
- 研究MDD患者的认知努力是如何以奖励来交易的.
- 为了检查疲劳和抑郁情绪对MDD的基于努力的决策的影响.
主要方法:
- 在健康参与者 (n=26) 和患有MDD的个人 (n=18) 中使用了强制选择范式.
- 参与者可以在低努力/小回报和高努力/大回报的认知任务之间进行选择.
- 贝克抑郁症库存和修改疲劳影响量表得分的因子分析提供了层级混合效应模型的信息.
主要成果:
- 与健康对照组相比,患有MDD的个体更倾向于低努力/低回报的选择.
- 在MDD中,增加的疲劳水平与认知努力的感知成本更高有关.
- 疲劳得分与基于努力的选择的相关性比抑郁情绪得分更强.
结论:
- 疲劳显著影响MDD的基于努力的决策,可能减少目标导向的行为.
- 研究结果强调,疲劳是MDD中动机减弱的关键因素.
- 了解这种联系可能会为MDD提供更有效的治疗策略.
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