Results 31 to 40 of about 3,930 (223)

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

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

Altered trigeminothalamic spontaneous low-frequency oscillations in migraine without aura: a resting-state fMRI study

BMC Neurology, 2021
Background Recent resting-state fMRI studies demonstrated functional dysconnectivity within the central pain matrix in migraineurs. This study aimed to investigate the spatial distribution and amplitude of low-frequency oscillations (LFOs) using ...
Ye Eun Kim, Min Kyung Kim, Sang-il Suh, Ji Hyun Kim   +3 more
doaj   +1 more source

Regional brain dysfunction in insomnia after ischemic stroke: A resting-state fMRI study

Frontiers in Neurology, 2022
ObjectiveThis study aimed to explore the abnormality of local brain function in patients with post-stroke insomnia (PSI) based on fMRI and explore the possible neuropathological mechanisms of insomnia in patients with PSI in combination with the ...
Hongzhuo Wang, Yunxuan Huang, Mingrui Li, Han Yang, Jie An, Xi Leng, Danghan Xu, Shijun Qiu   +7 more
doaj   +1 more source

Effects of the DRD4 −521 C/T SNP on Local Neural Activity and Functional Connectivity in Children With ADHD

Frontiers in Psychiatry, 2022
Objective: The present study aimed to investigate the effects of the dopamine receptor D4 (DRD4) −521 C/T single-nucleotide polymorphism on brain function among children with attention deficit hyperactivity disorder (ADHD) and to evaluate whether brain ...
Huan Zhang, Binrang Yang, Gang Peng, Linlin Zhang, Diangang Fang   +4 more
doaj   +1 more source

Fractional amplitude of low-frequency fluctuations (fALFF) in post-stroke depression

NeuroImage: Clinical, 2017
Depression is a common outcome following stroke, associated with reduced quality of life and poorer recovery. Despite attempts to associate depression symptoms with specific lesion sites, the neural basis of post-stroke depression remains poorly understood.
Natalia Egorova, Michele Veldsman, Toby Cumming, Amy Brodtmann   +3 more
openaire   +4 more sources

Fractional amplitude of low frequency fluctuation in drug-naïve first-episode patients with anorexia nervosa: A resting-state fMRI study. [PDF]

Medicine (Baltimore), 2020
Abstract To characterize the fractional amplitude of low-frequency fluctuation (fALFF) in drug-naïve first-episode female patients with anorexia nervosa (AN) using resting-state functional magnetic resonance imaging (rs-fMRI).
Lai J, Xu T, Zhang H, Xi C, Zhou H, Du Y, Jiang J, Wu L, Zhang P, Xu Y, Hu S, Xu D.   +11 more
europepmc   +3 more sources

Spontaneous brain activity in healthy aging: An overview through fluctuations and regional homogeneity

Frontiers in Aging Neuroscience, 2023
IntroductionThis study aims to explore whole-brain resting-state spontaneous brain activity using fractional amplitude of low-frequency fluctuation (fALFF) and regional homogeneity (ReHo) strategies to find differences among age groups within a ...
Marc Montalà-Flaquer, Marc Montalà-Flaquer, Cristina Cañete-Massé, Cristina Cañete-Massé, Lídia Vaqué-Alcázar, Lídia Vaqué-Alcázar, Lídia Vaqué-Alcázar, David Bartrés-Faz, David Bartrés-Faz, David Bartrés-Faz, Maribel Peró-Cebollero, Maribel Peró-Cebollero, Maribel Peró-Cebollero, Joan Guàrdia-Olmos, Joan Guàrdia-Olmos, Joan Guàrdia-Olmos   +15 more
doaj   +1 more source