Results 211 to 220 of about 15,531 (235)

Characteristic alterations of dynamic amplitude of low-frequency fluctuation in patients with post-stroke depression

Brain Imaging and Behavior
The abnormalities in static brain activity in patients with post-stroke depression (PSD) have been widely reported; the abnormal alterations and characterized clustering model of the dynamic neural activity in PSD remain enigmatic. We investigated dynamic neural activity abnormalities in patients with PSD with the dynamic amplitude of low-frequency ...
Qiuhong Lu, Zhijian Liang, Huang Yanlan   +2 more
exaly   +4 more sources

Machine learning analysis reveals aberrant dynamic changes in amplitude of low-frequency fluctuations among patients with retinal detachment

Frontiers in Neuroscience, 2023
BackgroundThere is increasing evidence that patients with retinal detachment (RD) have aberrant brain activity. However, neuroimaging investigations remain focused on static changes in brain activity among RD patients. There is limited knowledge regarding the characteristics of dynamic brain activity in RD patients.AimThis study evaluated changes in ...
Wang Yuan-Yuan
exaly   +4 more sources

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Dynamic alterations of functional connectivity and amplitude of low-frequency fluctuations in patients with unilateral sudden sensorineural hearing loss

Neuroscience Letters, 2021
Unilateral sudden sensorineural hearing loss (SSNHL) adversely affects the quality of life, leading to increased risk of depression and cognitive decline. Our previous studies have mainly focused on the static brain function abnormalities in SSNHL patients. However, the dynamic features of brain activity in SSNHL patients are not elucidated. To explore
Yu-Ting, Li, Jia-Wei, Chen, Lin-Feng, Yan, Bo, Hu, Tian-Qi, Chen, Zhu-Hong, Chen, Jing-Ting, Sun, Yu-Xuan, Shang, Lian-Jun, Lu, Guang-Bin, Cui, Wen, Wang   +10 more
openaire   +2 more sources

More than just statics: Abnormal dynamic amplitude of low-frequency fluctuation in adolescent patients with pure conduct disorder

Journal of Psychiatric Research, 2020
The human brain activity is inherently dynamic over time. Conventional neuroimaging studies have reported abnormalities of static intrinsic brain activity or connectivity in adolescent patients with conduct disorder (CD). Little is known, however, regarding the temporal dynamics alterations of brain activity in CD.In this study, resting-state ...
Heng Chen, Song Wang, Hada Fong-Ha Ieong   +2 more
exaly   +3 more sources

Dynamic and static changes of amplitude of low-frequency fluctuations in anti‑N‑methyl‑D‑aspartate receptor encephalitis

Brain Imaging and Behavior, 2023
Previous neuroimaging research has examined static local brain activity changes in patients with anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis. However, the dynamic properties of local brain activity in anti-NMDAR encephalitis remain unknown.This study used a combination of the amplitude of low-frequency fluctuation (ALFF) method and a ...
Dongpeng, Wu, Yuanyuan, Guo, Chenglong, Li, Xiaonan, Pang, Si, Xu, Juanjuan, Zhang, Ling, Wei, Qianqian, Li, Jing, Du, Yanghua, Tian, Kai, Wang   +10 more
openaire   +2 more sources

Altered Temporospatial Variability of Dynamic Amplitude of Low-Frequency Fluctuation in Children with Autism Spectrum Disorder

Journal of Autism and Developmental Disorders
Autism spectrum disorder (ASD) is a neurodevelopmental disorder with altered brain activity. However, little is known about the integrated temporospatial variation of dynamic spontaneous brain activity in ASD. In the present study, resting-state functional magnetic resonance imaging data were analyzed for 105 ASD and 102 demographically-matched ...
Le Gao, Xiaonan Guo, Gao Le
exaly   +3 more sources

Altered dynamic amplitude of low‐frequency fluctuation in individuals at high risk for Alzheimer's disease

European Journal of Neuroscience
Abstract The brain's dynamic spontaneous neural activity is significant in supporting cognition; however, how brain dynamics go awry in subjective cognitive decline (SCD) and mild cognitive impairment (MCI) remains unclear.
Ming Qi
exaly   +3 more sources

More than just statics: altered complexity of dynamic amplitude of low-frequency fluctuations in the resting brain after stroke

Journal of Neural Engineering, 2022
Abstract Objective. Previous neuroimaging studies mainly focused on static characteristics of brain activity, and little is known about its characteristics over time, especially in post-stroke (PS) patients.
Na Tian, Liu-Ke Liang, Xue-Mao Luo, Rong-Liang Hu, Wan-Sheng Long, Rong Song   +5 more
openaire   +2 more sources

Dynamic analysis of amplitude of low-frequency fluctuation in children with growth hormone deficiency

Behavioural Brain Research
Growth hormone (GH) affects brain activities and promotes growth and development. GH is a peptide hormone secreted by the anterior pituitary gland and is tied to behavior and cognitive function. Growth hormone deficiency (GHD) is the most common type of pathological short stature in children.
Jurong Ding, Qiang Chen, Yihong Liu, Zhiling Tang, Chenyu Feng, Mei Wang, Zhongxiang Ding   +6 more
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Decline in executive function in patients with white matter hyperintensities from the static and dynamic perspectives of amplitude of low‐frequency fluctuations

Journal of Neuroscience Research, 2021
Abstract Cognitive impairments are characteristics of patients with white matter hyperintensities (WMHs), and hypoperfusion is currently a relatively recognized mechanism of WMHs. Brain activity is closely coupled to the regulation of local blood flow.
Shanshan Cao, Jun Zhang, Chen Chen, Xiaojing Wang, Yang Ji, Jiajia Nie, Yanghua Tian, Bensheng Qiu, Qiang Wei, Kai Wang   +9 more
openaire   +2 more sources