隐式学习对精神分裂症患者功能连接性的影响
Asli Ceren Hinc1,2, Simay Selek1, Ibrahim Sungur1,3
1Standardization of Computational Anatomy Techniques for Cognitive and Behavioral Sciences (SoCAT) Lab, Department of Psychiatry, School of Medicine, Ege University, Izmir, Türkiye.
精神分裂症患者表现出暗示学习障碍和皮质-状-大脑电路中的大脑连接性改变. 任务后的超连接可能代表了一个功能障碍的补偿机制,为精神分裂症提供了潜在的生物标志物.
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.
- 认知科学 认知科学
背景情况:
- 神经元可塑性对于认知功能至关重要.
- 精神分裂症与神经可塑性受损有关,导致认知缺陷和功能障碍.
研究的目的:
- 为了研究皮质-状-小脑电路内的精神分裂症患者的神经可塑性变化.
- 通过奖励增强的串行反应时间任务 (SRTT) 和静止状态功能MRI (rs-fMRI) 检查隐性学习和功能连接性变化.
主要方法:
- 42名精神分裂症患者和25名健康对照人接受了任务前和后的fMRI.
- 用奖励增强的SRTT来评估隐性学习和任务诱导的大脑活动.
主要成果:
- 精神分裂症患者表现出暗示学习的减少,以较低的准确度为证据.
- 在精神分裂症患者中观察到皮质 - 条状 - 大脑电路的连接性增加,在任务后变得更加明显.
- 在thalamo-cortico-cerebellar电路中的任务诱导的连接性变化预测了群体成员资格.
结论:
- 神经可塑性障碍在精神分裂症相关的认知缺陷中起着重要作用.
- 改变的功能连接模式可能成为精神分裂症临床差异化的潜在神经标记.
- 这些发现表明精神分裂症中存在功能障碍的补偿机制,突出了干预的目标.
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