作者
Zhe Zhang, Guangyao Liu, Zhijun Yao, Weihao Zheng, Yuanwei Xie, Tao Hu, Yu Zhao, Yue Yu, Ying Zou, Jie Shi, Jing Yang, Tiancheng Wang, Jing Zhang, Bin Hu
发表日期
2018/6/14
期刊
Frontiers in Neurology
卷号
9
页码范围
448
出版商
Frontiers Media SA
简介
Time-varying connectivity analyses have indicated idiopathic generalized epilepsy (IGE) could cause significant abnormalities in dynamic connective pattern within and between resting-state sub-networks (RSNs). However, previous studies mainly focused on the IGE-induced dynamic changes of functional connectivity (FC) in specific frequency band (0.01–0.08 Hz or 0.01–0.15 Hz), ignoring the changes across different frequency bands. Here, 24 patients with IGE characterized by juvenile myoclonic epilepsy (JME) and 24 matched healthy controls were studied using a data-driven frequency decomposition approach and a sliding window approach. The RSN dynamics, including intra-RSN dynamics and inter-RSN dynamics, was further calculated to investigate dynamic FC changes within and between RSNs in JME patients in each decomposed frequency band. Compared to healthy controls, JME patients not only showed frequency-dependent decrease in intra-RSN dynamics within multiple RSNs but also exhibited fluctuant alterations in inter-RSN dynamics among several RSNs over different frequency bands especially in the ventral/dorsal attention network and the subcortical network. Additionally, the disease severity had significantly negative correlations with both intra-RSN dynamics within the subcortical network and inter-RSN dynamics between the subcortical network and the default network at the lower frequency band (0.0095–0.0195 Hz). These results suggested that abnormal dynamic FC within and between RSNs in JME occurs at multiple frequency bands and the lower frequency band (0.0095–0.0195 Hz) was probably more …
学术搜索中的文章
Z Zhang, G Liu, Z Yao, W Zheng, Y Xie, T Hu, Y Zhao… - Frontiers in Neurology, 2018