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在奖励行为中增加的个体内变异性与精神分裂症的症状严重程度有关
I-Fei Chen1,2, Yu-Chen Chan3, Chih-Min Liu4
1School of Psychology, University of Ottawa, Ottawa, ON, Canada.
Schizophrenia (Heidelberg, Germany)
|August 5, 2025
概括
精神分裂症患者在认知任务中表现出较大的试验变化,影响奖励动机. 这种增加的个体内变异性与症状严重程度相关,表明认知处理不精确.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 精神病学是一个精神病学.
背景情况:
- 精神分裂症 (SZ) 是一种复杂的疾病,具有认知和奖励动机缺陷.
- 之前的研究表明,在SZ患者中,认知功能的学科间变异性更高.
- 这项研究调查了SZ患者内个体内变异性的潜在增加.
研究的目的:
- 分析精神分裂症患者在基于奖励的任务中行为指标的个体内变异性.
- 探索个体内变异性与精神病理症状严重程度之间的关系.
主要方法:
- 在歧视和喜欢任务期间,分析响应时间 (RT),准确性 (ACC) 和喜欢等级的个体内变异性.
- 跨不同任务的变化度的相关性分析.
- 评估行为变异性与正负综合征量表 (PANSS) 之间的关系.
主要成果:
- 精神分裂症患者在所有行为指标 (RT,ACC,喜欢) 中显示出增加的个体内变异性.
- 可变性指标在任务之间存在显著的相关性.
- 增加的主体内变异性与整体和一般精神病理症状严重程度 (PANSS) 有关.
结论:
- 精神分裂症与奖励激励任务中的异常增加的个体内变异性有关.
- 这种增加的可变性是精神分裂症症状严重程度的一个关键因素.
- 增加的心理行为变异性表明认知处理和时间不精确,与神经水平的发现保持一致.
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