不匹配的消极性在青春期发展,并且独立于微质细胞
Anna M Rader Groves1, David A Ricci1, Joseph A Wargo1
1Neuroscience Institute, Georgia State University, Atlanta, GA 30303.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
不匹配的消极性,精神分裂症生物标志物,在青少年大脑发育期间成熟. 微质的枯竭没有影响这种成熟,这表明它们在更高的视觉处理中的作用对于这个特定的发育过程来说并不重要.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 精神病学是一个精神病学.
背景情况:
- 青春期是大脑发育的关键时期,也是精神疾病如精神分裂症的典型发病时期.
- 了解青少年发育和精神分裂症病理生理学之间的相互作用对于精神病学研究至关重要.
- 不匹配负面性 (MMN) 是精神分裂症的一个公认的生物标志物.
研究的目的:
- 研究青少年小鼠视觉皮层中不匹配负面性 (MMN) 的发展轨迹.
- 探索微质在青春期MMN和相关视觉处理的发展中的作用.
- 在精神分裂症风险的背景下,澄清微细胞对更高级视觉处理发展的具体贡献.
主要方法:
- 利用小鼠模型研究青少年大脑发育.
- 在青春期服用PLX5622以消耗小质细胞.
- 评估的不匹配负面性 (MMN) 发展,静止振荡,偏差检测和前视觉功能连接.
主要成果:
- 不匹配负面性 (MMN) 在小鼠初级视觉皮层中在青春期成熟,伴随着加强前视觉连接.
- 青少年时期的微质衰竭阻止了前部休息振荡的发展,但并没有阻碍MMN的发展或其他视觉处理方面.
- 前额外视觉功能连接的发展不受微质衰竭的影响.
结论:
- 不匹配消极性 (MMN) 的一个关键组成部分是在青春期发展的,这是精神分裂症发病的脆弱时期.
- 这种MMN组件的发育轨迹不需要显著的微质活动.
- 这些发现描绘了微质在更高阶视觉处理中的发育作用,表明它们对MMN成熟不至关重要.
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