不典型的区域内和区域间合模式涉及重复的非自杀性自我伤害
Yi Xia1, Ciqing Bao2, Jiayu Liu1
1Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, 210029, China.
Journal of psychiatric research
|October 25, 2025
概括
患有严重抑郁症 (MDD) 的青少年的反复性非自杀性自我伤害 (R-NSSI) 与反应抑制受损有关. 大脑成像显示R-NSSI中神经连接和信息流动受到干扰,这表明认知控制机制发生了变化.
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.
- 发展心理学 发展心理学
背景情况:
- 非自杀性自我伤害 (NSSI),特别是重复性NSSI (R-NSSI),在患有严重抑郁症 (MDD) 的青少年中越来越普遍.
- R-NSSI可能代表一种与响应抑制缺陷相关的行为成.
- 了解R-NSSI中响应抑制的神经基础对于开发有针对性的干预措施至关重要.
研究的目的:
- 调查R-NSSI.I.青少年反应抑制的神经相关物.
- 在响应抑制任务期间检查大脑连接模式和信息流.
主要方法:
- 磁脑电图 (MEG) 用于记录85名年轻人 (27名MDD有R-NSSI,28名MDD没有NSSI,30名健康对照) 执行Go/NoGo任务的脑活动.
- 进行了相振幅合和功能连接分析,以评估区域内和区域间的大脑通信.
- 用阶段斜率指数来确定信息流的方向.
主要成果:
- 患有R-NSSI的青少年在部区域表现出马振幅和β相的超合.
- 在前额神经认知控制回路内观察到功能连接性下降,涉及β和gamma振荡.
- 在R-NSSI组显示信息流变化,负面的前侧平行和正面的前侧平行模式. 功能性连接强度与童年创伤严重程度相关.
结论:
- 患有R-NSSI的年轻人表现出局部和区域神经控制过程的中断.
- 一个低效的前额叶网络,通过增加叶活动来补偿,是R-NSSI的特征.
- 这些发现为青少年NSSI背后的神经机制提供了电生理学的见解.
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