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在精神分裂症或创伤性脑损伤患者中,基于EEG的神经可塑性方法进行预测编码

Jonathan K Wynn^1,2, Michael F Green^1,2

¹Center on Enhancement of Community Integration for Homeless Veterans, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.

Clinical EEG and neuroscience

|May 7, 2024

概括

预测错误编码对于神经可塑性至关重要,在精神分裂症中受损但没有创伤性脑损伤. 这项研究使用了漫游不匹配负面性范式来评估预测错误信号中的这些差异.

科学领域:

神经科学是一个神经科学.
认知科学认知科学
精神病学是一个精神病学.

背景情况:

精神分裂症 (SCZ) 和创伤性脑损伤 (TBI) 分享异常的神经可塑性.
预测错误编码是一个关键的神经可塑性机制,可能会在两种情况下都受到影响.

研究的目的:

使用漫游不匹配负面性 (rMMN) 范式调查预测错误编码.
为了比较SCZ,TBI和健康对照个体的预测错误编码.

主要方法:

使用频率偏差的rMMN范式,具有不同的标准音长 (2, 6, 36).
评估的重复阳性 (RP),偏差阴性 (DN) 和不匹配阴性 (MMN).
评估了25名SCZ患者,22名轻度至中度TBI患者和25名健康对照.

主要成果:

与对照组和TBI患者相比,精神分裂症患者的DN和MMN减少.
与对照组相比,在TBI患者中没有发现RP,DN或MMN的显著损伤.
一个趋势表明,较大的头部损伤严重程度与较差的预测错误编码相关.

结论:

根据rMMN的评估,预测错误编码在精神分裂症中是异常的.
在轻度至中度的TBI中,预测错误编码似乎完好无损.
rMMN是区分SCZ和TBI神经可塑性缺陷的一个有价值的工具.

关键词:

不匹配的消极性,消极的消极性神经可塑性神经可塑性预测编码的预测编码.精神分裂症是一种精神分裂症.创伤性脑损伤是一种创伤性脑损伤

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