在精神分裂症频谱障碍中,功能连接梯度和认知之间的多变量关联
Ju-Chi Yu1, Colin Hawco2, Lucy Bassman1
1Kimel Family Translational Imaging-Genetics Research Laboratory, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.
精神分裂症谱系障碍 (SSD) 显示大脑网络分化减少,影响社会认知和日常功能. 这种大脑行为联系可能解释SSD患者的认知和功能缺陷.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 精神病学是一个精神病学.
背景情况:
- 精神分裂症谱系障碍 (SSD) 与受损的社会认知和被破坏的大脑网络连接有关.
- 大脑失联,社会/非社会认知和SSD中的临床结果之间的关系尚不清楚.
研究的目的:
- 研究大脑网络梯度差异如何与SSD中的认知能力和临床症状有关.
- 为了探索与SSD和健康对照的个体的大脑行为相关性.
主要方法:
- 使用了SPINS研究中的静止状态fMRI和认知评估 (247个SSD,172个对照).
- 分析了大脑网络梯度及其与使用部分最小平方相关性 (PLSC) 的认知指标的关联.
- 在SSD组中,与功能和症状严重程度相关联的PLSC发现.
主要成果:
- 拥有SSD的个体在所有三个主要大脑网络梯度上都表现出明显较低的分化.
- 主要的PLSC维度,反映了认知措施和网络差异化,在SSD和控制器之间存在显著差异.
- 认知功能与单模和多模网络的梯度得分有关,SSD中观察到的差异较小.
结论:
- 减少大脑网络梯度的分化可能是SSD的认知和功能障碍的基础.
- 这些发现突出了潜在的神经机制,有助于SSD患者所面临的挑战.
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