Results 21 to 30 of about 29,753 (243)

Aberrant Amplitude of Low-Frequency Fluctuation and Degree Centrality within the Default Mode Network in Patients with Vascular Mild Cognitive Impairment [PDF]

Brain Sciences, 2021
Qi Yang, , Yingying Li
exaly   +2 more sources

The abnormal fractional amplitude of low-frequency fluctuation changes in patients with diabetic optic neuropathy: a steady-state fMRI study

Journal of Integrative Neuroscience, 2021
The spontaneous changes in brain activity in patients with diabetic optic neuropathy using steady-state fMRI. The fractional amplitude of the low-frequency fluctuation method was applied to evaluate neural activity changes.
Yi-Ping Jiang, Wen-Feng Liu, Yi-Cong Pan, Hui-Ye Shu, Li-Juan Zhang, Qiu-Yu Li, Qian-Min Ge, Rong-Bin Liang, Gang-Ming Zou, Yi Shao   +9 more
doaj   +1 more source

Abnormal spontaneous brain activity in females with autism spectrum disorders

Frontiers in Neuroscience, 2023
ObjectivesTo date, most studies on autism spectrum disorder (ASD) have focused on sample sets that were primarily or entirely composed of males; brain spontaneous activity changes in females remain unclear.
Jiapei Xie, Jiapei Xie, Weidong Zhang, Yu Shen, Wei Wei, Yan Bai, Ge Zhang, Nan Meng, Nan Meng, Xipeng Yue, Xipeng Yue, Xinhui Wang, Xianchang Zhang, Meiyun Wang, Meiyun Wang   +14 more
doaj   +1 more source

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

Frequency-dependent changes in the amplitude of low-frequency fluctuations in internet gaming disorder [PDF]

Frontiers in Psychology, 2015
Los estudios de neuroimagen han revelado que las actividades cerebrales funcionales relacionadas con las tareas se ven afectadas en los sujetos con trastorno por juego en Internet (IgD). Sin embargo, se sabe poco sobre las alternancias en las actividades cerebrales espontáneas sobre ellos. Estudios recientes han propuesto que las actividades cerebrales
Xiao Lin, Xize Jia, Yu‐Feng Zang, Guangheng Dong   +3 more
openaire   +3 more sources

Echo Time Dependency of Local Activity Metrics of Resting-State Functional MRI

Frontiers in Neuroscience, 2021
Local activity metrics of resting-state functional MRI (RS-fMRI), such as the amplitude of low-frequency fluctuation (ALFF), fractional ALFF (fALFF), regional homogeneity (ReHo), and degree centrality (DC), are widely used to detect brain abnormalities ...
Li-Xia Yuan, Li-Xia Yuan, Li-Xia Yuan, Na Zhao, Xiu-Qin Wang, Xiu-Qin Wang, Xiu-Qin Wang, Ya-Ting Lv, Ya-Ting Lv, Ya-Ting Lv, Hongjian He   +10 more
doaj   +1 more source

Altered Spontaneous Brain Activity in Left-Behind Children: A Resting-State Functional MRI Study

Frontiers in Neurology, 2022
BackgroundParental migration has been associated with a higher risk of cognitive and behavioral abnormalities in left-behind children (LBC). This study aimed to explore the spontaneous brain activity in LBC and reveal the mechanisms underlying behavioral
Yu Wang, Yi Lu, Meimei Du, Nimo Mohamed Hussein, Lan Li, Yu Wang, Chuanwan Mao, Tao Chen, Fangfang Chen, Xiaozheng Liu, Xiaozheng Liu, Zhihan Yan, Yuchuan Fu   +12 more
doaj   +1 more source

Frequency-specific alterations of fractional amplitude of low-frequency fluctuations in adult-onset hypothyroidism

Journal of Integrative Neuroscience, 2023
AbstractPurpose Abnormal spontaneous neuronal activities associated with cognitive deficits and emotional dysfunction were found in hypothyroidism. However, routine method employs a relatively broader range of spontaneous fluctuations and would mingle physiological fluctuations contained in specific frequency. In current study we explored how frequency-
Lianping Zhao, Jiancang Cao, Rui Qin, Limin Tian, Gang Huang, Jing Tian, Yalan Han, Qian Shi   +7 more
openaire   +3 more sources

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

The Influence of the Amplitude of Low-Frequency Fluctuations on Resting-State Functional Connectivity [PDF]

Frontiers in Human Neuroscience, 2013
Studies of brain functional connectivity have provided a better understanding of organization and integration of large-scale brain networks. Functional connectivity using resting-state functional magnetic resonance imaging (fMRI) is typically based upon the correlations of the low-frequency fluctuation of fMRI signals.
Di, Xin, Kim, Eun H., Huang, Chu-Chung, Tsai, Shih-Jen, Lin, Ching-Po, Biswal, Bharat B.   +5 more
openaire   +3 more sources