在临床高风险的年轻人中,听觉p300事件相关潜力和认知基本症状之间的关联
James C Martin1, K Oliver Schubert1,2,3, Daniel H Mathalon4,5,6
1Discipline of Psychiatry, Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia.
Psychiatry and clinical neurosciences
|August 21, 2025
概括
患有精神病临床高风险的个体的认知基本症状与P3b振幅降低有关,这是一个脑波标记. 这一发现可能表明精神病发作的感官数据处理发生了变化.
科学领域:
- 神经科学
- 精神病学
- 认知科学
背景情况:
- 对临床高风险精神病患者来说,评估基本症状至关重要.
- 主观经验和电生理生物标志物在CHR研究中越来越受到关注.
- 认知基本症状 (COGDIS) 是基本症状的一个关键子集.
研究的目的:
- 调查COGDIS与P3b振幅减小之间的关联.
- 探索COGDIS与CHR个体的大脑连接调节之间的联系.
- 使用大量的CHR样本进行强大的电生理学分析.
主要方法:
- 使用了北美Prodromal长度研究-3 (NAPLS-3) 的数据,其中包括440名CHR参与者.
- 管理了精神分裂症易感仪器的COGDIS项目和一个听觉奇怪的任务.
- 测量了P3b振幅在顶部电极 (Pz,P3,P4) 上,并分析了大脑连接调节.
主要成果:
- COGDIS与P4电极的P3b振幅有显著的相关性.
- 这种关联与阳性或阴性症状严重程度无关.
- 没有观察到大脑连接强度或调节的显著差异.
结论:
- 认知基本症状的标准与右骨区域的P3b幅度降低相关.
- 周围P3b衰减可能表明对感官数据的关注程度较高.
- 这一发现为精神病的认知基本症状的发病提供了洞察力.
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