Results 21 to 30 of about 173,658,569 (246)

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
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The relevance of fractional amplitude of low-frequency fluctuation to interference effect [PDF]

Behavioural Brain Research, 2016
Growing evidence has indicated a potential connection between resting-state functional magnetic resonance imaging (RS-fMRI) signal and cognitive performance. However, the relationship between intrinsic neural activity and behavioral interference effect on cognitive control has been poorly understood. In the present study, seventy-eight healthy subjects
Yuqin, Deng, Yan, Wang, Xiaoqian, Ding, Yi-Yuan, Tang   +3 more
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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
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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
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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

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

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

Dynamic Altered Amplitude of Low-Frequency Fluctuations in Patients With Major Depressive Disorder [PDF]

Frontiers in Psychiatry, 2021
Background: Major depressive disorder (MDD) has demonstrated abnormalities of static intrinsic brain activity measured by amplitude of low-frequency fluctuation (ALFF). Recent studies regarding the resting-state functional magnetic resonance imaging (rs-fMRI) have found the brain activity is inherently dynamic over time.
Ruiping Zheng, Yuan Chen, Yu Jiang, Mengmeng Wen, Bingqian Zhou, Shuying Li, Yarui Wei, Zhengui Yang, Caihong Wang, Jingliang Cheng, Yong Zhang, Shaoqiang Han   +11 more
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Aberrant Amplitude of Low-Frequency Fluctuations in Different Frequency Bands in Patients With Parkinson’s Disease [PDF]

Frontiers in Aging Neuroscience, 2020
Previous studies reported abnormal spontaneous neural activity in Parkinson’s disease (PD) patients using resting-state functional magnetic resonance imaging (R-fMRI). However, the frequency-dependent neural activity in PD is largely unknown. Here, 35 PD patients and 35 age- and education-matched healthy controls (HCs) underwent R-fMRI scanning to ...
Zhaoxiu Wang, Yanjun Liu, Yanjun Liu, Xiuhang Ruan, Yuting Li, E. Li, Guoqin Zhang, Mengyan Li, Xinhua Wei   +8 more
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Spontaneous Brain Activities in Hyperthyroidism Patients Assessed Using Fractional Amplitude of Low-frequency Fluctuation [PDF]

Zhongguo quanke yixue, 2022
Background Hyperthyroidism is a common endocrine psychosomatic disease, which is often accompanied by negative emotions, seriously affecting the prognosis of patients.
WU Xiaoran, WANG Xiaoyue, GENG Yibo, ZHANG Hongxing, ZHANG Haisan
doaj   +1 more source