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在早期精神分裂症的语言处理过程中训练神经振荡
Tineke Grent-'t-Jong1, Pradeep Dheerendra2, Paolo Fusar-Poli3
1Department of Child and Adolescent Psychiatry, Charité Universitätsmedizin, Berlin, Germany.
NeuroImage. Clinical
|November 13, 2024
概括
神经振荡,特别是泰达频带带动,在临床高危精神病 (CHR-P) 个体的语音跟踪过程中受到损害. 听觉皮层中的这种缺陷与感知异常相关,表明精神分裂症 (ScZ) 的潜在生物标志物.
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.
- 计算语言学 计算语言学
背景情况:
- 精神分裂症 (ScZ) 的特点是语言处理障碍,但潜在的神经机制仍然不清楚.
- 在语音跟踪过程中调查神经振荡可能会阐明早期ScZ和CHR-P的病理生理学.
- 这项研究假设CHR-P和早期ScZ群体的语音跟踪中神经振荡受损.
研究的目的:
- 在连续语音跟踪过程中检查神经振荡 (三角波段和甲波段携带).
- 为了比较CHR-P,早期ScZ患者和健康对照 (HC) 之间的语音跟踪能力.
- 为了将神经振荡缺陷与临床症状相关联,特别是感知异常.
主要方法:
- 磁脑电图 (MEG) 和源重建被用于分析三角波段和甲波段活动.
- 一种相互信息 (MI) 方法通过评估MEG听觉信号依赖度来量化语音跟踪能力.
- 分析了语言网络区域的MEG活动,包括布罗卡,韦尼克和赫斯克的.
主要成果:
- 在所有组中,与WORD条件相比,在STORY条件下,theta频段的卷入率明显较低.
- 与对照组相比,CHR-P参与者表现出明显较低的甲基频带携带,而早期ScZ患者则没有.
- 在CHR-P个体中较低的甲基频段跟踪与感知异常的严重程度相关.
结论:
- 在语音跟踪过程中,CHR-P参与者在左侧主要听觉皮质中表现出 teta 频段带动障碍.
- 高级语音处理区域在CHR-P个体中保持不变.
- 在语音处理过程中,达频带带的缺陷可能作为 ScZ.早期检测和诊断的候选生物标志物.
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