Results 21 to 30 of about 176,078,744 (269)

Frequency-specific alterations in the fractional amplitude of low-frequency fluctuations in amyotrophic lateral sclerosis [PDF]

Neurological Sciences, 2016
This study used resting-state functional magnetic resonance imaging and fractional amplitude of low-frequency fluctuations (fALFF) method to investigate low-frequency spontaneous neural activity at the bands of slow-5 (0.01-0.027 Hz) and slow-4 (0.027-0.073 Hz) in 20 patients with amyotrophic lateral sclerosis (ALS) and 20 healthy controls.
Xujing, Ma, Jiuquan, Zhang, Youxue, Zhang, Heng, Chen, Rong, Li, Zhiliang, Long, Junjie, Zheng, Jian, Wang, Huafu, Chen   +8 more
  +9 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

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

Abnormal regional spontaneous neural activity and functional connectivity in thyroid-associated ophthalmopathy patients with different activity: a resting-state fMRI study

Frontiers in Neurology, 2023
PurposeWe aimed to evaluate the spontaneous neuronal activity and functional connectivity pattern variations using resting-state functional magnetic resonance imaging (rs-fMRI) measures, such as amplitude of low-frequency fluctuation (ALFF), fractional ...
Mengda Jiang, Haiyang Zhang, Haiyang Zhang, Yuting Liu, Yuting Liu, Shuo Wu, Shuo Wu, Jialu Qu, Jialu Qu, Yan Tang, Yang Song, Yinwei Li, Yinwei Li, Jing Sun, Jing Sun, Ling Zhu, Huifang Zhou, Huifang Zhou, Xiaofeng Tao   +18 more
doaj   +1 more source

The ALFF Alterations of Spontaneous Pelvic Pain in the Patients of Chronic Prostatitis/Chronic Pelvic Pain Syndrome Evaluated by fMRI

Brain Sciences, 2022
Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is a challenging entity with complicated symptoms for treatment in the male crowd. Accumulating evidence revealed the dysfunction in the central system should be a critical factor for the ...
Shengyang Ge, Qingfeng Hu, Guowei Xia, Yifan Tan, Yijun Guo, Chuanyu Sun   +5 more
doaj   +1 more source

Fractional amplitude of physiological fluctuations of resting state fNIRS in Alzheimer’s disease patient and healthy control [PDF]

, 2023
Functional magnetic resonance imaging (fMRI) is a common medical device to diagnose Alzheimer’s disease (AD), but it is not for all subjects due to its cost and other issues.
Ferdinando, Hany, Korhonen, Vesa, Kiviniemi, Vesa, Hany Ferdinando, Moradi, Sadegh, Vesa Kiviniemi, Teemu S. Myllylä, Sadegh Moradi, Myllylä, Teemu, Vesa Korhonen   +9 more
core   +1 more source

Convergent Functional Changes of Default Mode Network in Mild Cognitive Impairment Using Activation Likelihood Estimation

Frontiers in Aging Neuroscience, 2021
Background: Mild cognitive impairment (MCI) represents a transitional state between normal aging and dementia disorders, especially Alzheimer's disease (AD). The disruption of the default mode network (DMN) is often considered to be a potential biomarker
Qianqian Yuan, Wenzhang Qi, Chen Xue, Honglin Ge, Guanjie Hu, Shanshan Chen, Wenwen Xu, Yu Song, XuLian Zhang, Chaoyong Xiao, Chaoyong Xiao, Jiu Chen, Jiu Chen   +12 more
doaj   +1 more source

Differentiating Melancholic and Non-melancholic Major Depressive Disorder Using Fractional Amplitude of Low-Frequency Fluctuations [PDF]

Frontiers in Psychiatry, 2022
BackgroundMelancholic major depressive disorder (MDD) is a network-based brain disorder. However, whether or not network-based changes can be applied to differentiate melancholic (MEL) from non-melancholic (NMEL) MDD remains unclear.MethodsThirty-one MEL patients, 28 NMEL patients, and 32 matched healthy controls (HCs) were scanned using resting-state ...
Yingying Zhang, Xilong Cui, Yangpan Ou, Feng Liu, Huabing Li, Jindong Chen, Jingping Zhao, Guangrong Xie, Wenbin Guo, Wenbin Guo   +9 more
openaire   +3 more sources