缺陷精神分裂症和非缺陷精神分裂症中大脑网络功能连接的动态模式发生变化
Biying Ye1, Yiqiao Wu1, Mingjun Cao1
1Department of Fourth Clinical Medical College, Nanjing Medical University, Nanjing, China.
缺陷精神分裂症 (DS) 与非缺陷精神分裂症 (NDS) 相比,显示出明显的改变动态功能网络连接 (dFNC) 模式. 这些dFNC变化与认知障碍相关,提供神经成像对DS病变的洞察力.
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.
- 医疗成像医学成像
背景情况:
- 精神分裂症呈现出不同的临床现象,包括缺陷 (DS) 和非缺陷 (NDS) 亚型.
- 了解这些亚型的神经生物学基础对于有针对性的治疗至关重要.
研究的目的:
- 调查DS和NDS患者之间动态功能网络连接 (dFNC) 的差异.
- 探索改变的dFNC模式和DS的认知障碍之间的关系.
主要方法:
- 利用独立组件分析和fMRI大脑图谱用于功能网络识别.
- 分析了跨识别网络的动态功能连接 (FC),并与认知评估相关联.
- 包括70个DS,91个NDS和120个健康对照 (HC).
主要成果:
- 确定了四种不同的动态大脑状态.
- 与NDS相比,DS在状态1中表现出增加的传感运动和默认模式网络FC,在状态4中表现出听觉网络FC的减少.
- 在状态2和3中,DS显示了改变的平均停留时间,与认知缺陷相关.
结论:
- DS和NDS患者表现出独特的dFNC变化.
- 这些独特的连接模式与认知障碍有关,为DS病理生理学提供神经成像证据.
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