共同成长:在儿童和青少年的口头工作记忆中服务于发育敏感区域之间的动态连接
Abraham D Killanin1,2,3, Thomas W Ward1,2,4, Danielle L Rice1,2
1Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE, USA.
The Journal of physiology
|May 5, 2025
概括
从童年到青春期,语言记忆的大脑连接性发生了显著的变化. 关键脑区的功能连接性随着年龄的增长而增加,特别是在记忆任务的编码和维护阶段.
科学领域:
- 神经科学是一个神经科学.
- 发育神经科学的发展神经科学.
- 认知神经科学 认知神经科学
背景情况:
- 语言工作记忆网络从童年到青春期经历了显著的发展变化.
- 与其他神经属性相比,动态功能连接的成熟变化不太了解.
研究的目的:
- 在口头工作记忆网络中调查与年龄相关的动态功能连接的变化.
- 探索如何在口头工作记忆任务的不同阶段演变功能连接.
主要方法:
- 磁脑电图 (MEG) 用于记录75名典型发育年轻人 (6-14岁) 的大脑活动.
- 阶段锁定值被计算为指数大脑区域之间的功能连接,显示与年龄相关的关系.
- 分析侧重于口头工作记忆任务的编码和维护阶段的连接性.
主要成果:
- 在编码过程中,左前额前和下顶区域之间的功能连接随着年龄的增长而增加.
- 在编码过程中,与年龄相关的连接模式在右额头和左头头区域之间因性别而异.
- 在维护过程中,左前和右后区域之间的连接性随着年龄的增长而增加,左前和右后皮层之间的连接性下降.
结论:
- 从童年到青春期的发展调节了神经振荡和语言工作记忆网络中的功能连接.
- 研究结果表明,随着年龄的增长,口头工作记忆的处理变得更加左侧化.
- 结果完善了语言工作记忆的功能神经发育模型,对研究和临床研究有影响.
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