自闭症和精神分裂症谱系障碍中BOLD信号变量的跨诊断概况:与认知和功能相关联
bioRxiv : the preprint server for biology
|July 9, 2025
概括
自闭症和精神分裂症显示大脑信号变异性减少,与认知和社会功能缺陷有关. 这种神经刚性可能是这些疾病的跨诊断生物标志物.
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.
- 认知科学 认知科学
背景情况:
- 自闭症谱系障碍 (ASD) 和精神分裂症谱系障碍 (SSD) 分享社会和神经认知障碍.
- 这两种情况都表现出显著的神经生物学异质性.
- 血氧水平依赖 (BOLD) 信号变化反映了神经灵活性和认知能力.
研究的目的:
- 调查ASD,SSD和典型发展对照 (TDC) 个体在休息和任务期间的区域内BOLD信号变异性.
- 探索大脑信号变化的跨诊断模式.
- 检查BOLD变异性与认知/功能结果之间的关系.
主要方法:
- fMRI数据使用平均平方连续差异 (MSSD) 分析区域内BOLD变异性.
- 包括176名SSD,89名ASD和149名TDC参与者.
- 对年龄,性别和运动进行控制,以评估群体差异和与认知/功能措施的关联.
主要成果:
- 与TDC相比,ASD和SSD组在休息和任务条件下显示出明显较低的BOLD信号变化.
- 在体运动,视觉和听觉网络中观察到变异性减少.
- 更高的网络可变性与更好的社会认知,神经认知和社会功能正相关.
结论:
- 在所有组中,BOLD信号的变化与认知和功能结果有关.
- 在ASD和SSD中减少的BOLD变异性表明潜在的神经刚性,这是一个共同的特征.
- BOLD变异性可以作为神经灵活性的跨诊断生物标志物和干预的目标.
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