全球奖励处理缺陷在严重精神疾病谱样本中预测了跨诊断和跨阶段的负面症状
Lauren Luther1, Sierra A Jarvis2, Michael J Spilka2
1Department of Psychology, University of Georgia, 125 Baldwin St., Athens, GA, 30602, USA. lauren.luther@uga.edu.
European archives of psychiatry and clinical neuroscience
|December 5, 2023
概括
严重的精神疾病涉及与负面症状相关的奖励处理缺陷. 这项研究发现,全球奖励处理障碍途径有助于跨诊断和疾病阶段的负面症状.
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.
- 临床心理学 临床心理学
背景情况:
- 损伤的奖励处理与严重精神疾病的负面症状有关.
- 之前的研究表明,关于特定的奖励处理缺陷及其与负面症状的关联,存在不一致的发现.
研究的目的:
- 调查混合发现是否源于多个奖励处理途径导致负面症状.
- 检查这些途径是否具有跨诊断性和跨相性.
主要方法:
- 招募了健康对照组 (n=100) 和严重精神疾病谱系样本 (n=92),包括临床高风险的精神病,双相情感障碍和精神分裂症.
- 测量RDoC正价值系统构造的管理任务:价值表示,强化学习,努力成本计算和享乐反应性.
- 利用k-means集群分析来识别严重精神疾病样本中的奖励处理配置文件.
主要成果:
- 在严重精神疾病样本中确定了三个群体:全球奖励赤字 (22.8%),选择性快乐反应性赤字 (40.2%),和保留奖励处理 (37%).
- 在全球奖励处理赤字集群中,仅在全球奖励处理赤字集群中发现了增加的负面症状.
- 所有集群包括来自所有临床组的参与者,表明了跨诊断模式.
结论:
- 涉及全球奖励处理缺陷的跨诊断和跨阶段途径有助于负面症状.
- 研究结果表明,相同的临床组聚焦在类似的奖励处理缺陷上,导致负面症状.
- 对不同途径的进一步研究可以为严重精神疾病中负面症状的个性化治疗提供信息.
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