Results 1 to 10 of about 176,086,693 (264)

Dynamic and Static Amplitude of Low-Frequency Fluctuation Is a Potential Biomarker for Predicting Prognosis of Degenerative Cervical Myelopathy Patients: A Preliminary Resting-State fMRI Study [PDF]

Frontiers in Neurology, 2022
ObjectiveThe aim of this study was to explore the clinical value of the static amplitude of low-frequency fluctuation (sALFF) and dynamic amplitude of low-frequency fluctuation (dALFF) in the identification of brain functional alterations in degenerative
Ningjian Fan, Bing Zhao, LiYun Liu, WeiZhen Yang, Xian Chen, ZhanBin Lu   +5 more
doaj   +6 more sources

Altered static and dynamic amplitude of low-frequency fluctuations in acute carbon monoxide poisoning patients: a resting-state fMRI study [PDF]

Frontiers in Neuroscience
ObjectiveThis study aimed to investigate alterations in brain activity due to acute carbon monoxide poisoning (ACOP) and their relationship with clinical manifestations using static and dynamic amplitude of low-frequency fluctuation (ALFF) analyses ...
Shenghai Wang, Shenghai Wang, Tianze Sun, Wenxuan Han, Xiaoying Lin, Jiaqi Zhang, Yihao Peng, Mingyue Ma, Wei Sheng, Ming Zhang, Haining Li   +10 more
doaj   +7 more sources

Aberrant spontaneous static and dynamic amplitude of low‐frequency fluctuations in cerebral small vessel disease with or without mild cognitive impairment

Brain and Behavior, 2023
Background Cerebral small vessel disease (CSVD) is considered an age‐related degenerative neurological disorder and the most common risk factor for vascular cognitive impairment (VCI).
Xulian Zhang, Zhigang Wang, Darui Zheng, Xuan Cao, Wenzhang Qi, Qianqian Yuan, Da Zhang, Xuhong Liang, Yiming Ruan, Shaojun Zhang, Weijie Tang, Qingling Huang, Chen Xue   +12 more
doaj   +4 more sources

Early identification of autism spectrum disorder in preschoolers by static and dynamic amplitude of low-frequency fluctuations features

Frontiers in Human Neuroscience
ObjectivesEarly identification and timely intervention is critical for young children with autism spectrum disorder (ASD). The current study aims to explore potential disparities in static and dynamic intrinsic brain function in preschoolers with ASD ...
Kanghui Yu, Kanghui Yu, Shoujun Xu, Shishun Fu, Kelei Hua, Yi Yin, Qiang Lei, Jinwu Liu, Yunfan Wu, Guihua Jiang, Guihua Jiang   +10 more
doaj   +5 more sources

Dynamic alterations in the amplitude of low-frequency fluctuation in patients with cerebral small vessel disease [PDF]

Frontiers in Molecular Neuroscience, 2023
Background and purposePrevious studies have focused on the changes of dynamic and static functional connections in cerebral small vessel disease (CSVD). However, the dynamic characteristics of local brain activity are poorly understood.
Jiarui Song, Jiarui Song, Ting Lei, Yajun Li, Lijing Zhou, Wei Yan, Haiqing Li, Li Chen   +7 more
doaj   +4 more sources

Static and dynamic alterations in the amplitude of low-frequency fluctuation in patients with amyotrophic lateral sclerosis [PDF]

PeerJ, 2020
Background Static changes in local brain activity in patients suffering from amyotrophic lateral sclerosis (ALS) have been studied. However, the dynamic characteristics of local brain activity are poorly understood.
Xujing Ma, Fengmei Lu, Heng Chen, Caihong Hu, Jiao Wang, Sheng Zhang, Shuqin Zhang, Guiran Yang, Jiuquan Zhang   +8 more
doaj   +5 more sources

Brain white matter functional alterations in patients with Alzheimer’s disease and amnestic mild cognitive impairment [PDF]

BMC Medical Imaging
Objectives White matter (WM) blood oxygenation level-dependent (BOLD) signals show abnormalities in Alzheimer’s disease (AD) and amnestic mild cognitive impairment (aMCI).
Yi Lin, Fengyi Dai, Diewen Dong, Yifan Jia, Junqin Zhang, Yan Chen, Xiuhong Ge, Zhongxiang Ding, Luoyu Wang, Qi Feng   +9 more
doaj   +2 more sources

Alterations of dynamic and static brain functional activities and integration in stroke patients

Frontiers in Neuroscience, 2023
ObjectiveThe study aimed to investigate the comprehensive characteristics of brain functional activity and integration in patients with subcortical stroke using dynamic and static analysis methods and to examine whether alterations in brain functional ...
Li Guo, Li Guo, Zixuan Zhao, Zixuan Zhao, Xu Yang, Weiyang Shi, Peng Wang, Dongdong Qin, Jiaojian Wang, Yong Yin   +9 more
doaj   +1 more source

Dynamic changes of amplitude of low-frequency in systemic lupus erythematosus patients with cognitive impairment

Frontiers in Neuroscience, 2022
BackgroundCognitive dysfunction (CI) is frequently reported in patients with systemic lupus erythematosus (SLE), but the identification and assessment of SLE-related CI remain challenging. Previous studies have focused on changes in static brain activity,
Yifan Yang, Ruotong Zhao, Fengrui Zhang, Ru Bai, Shu Li, Ruomei Cui, Shuang Liu, Jian Xu   +7 more
doaj   +1 more source

Response analysis of 3D braided two-stage gear system excited by different frequency signals

Advances in Mechanical Engineering, 2021
The knitting principle of 3D braided gear was studied, and the dynamic model of the two-stage gear system was established. The fourth-order Runge-Kutta method was used to numerically simulate the dynamic characteristics of common gear and 3D braided gear.
Weiliang Zhang, Xupeng Wang, Xiaomin Ji, Xinyao Tang, Fengfeng Liu, Shuwei Liu, Tengyuan Xue   +6 more
doaj   +1 more source