Results 11 to 20 of about 3,460 (171)

Frequency-Specific Alterations of Fractional Amplitude of Low-Frequency Fluctuations in Adult-Onset Hypothyroidism

Journal of Integrative Neuroscience
Background: The neuropathophysiological mechanisms of brain damage underlying hypothyroidism remain unclear. Fractional amplitude of low-frequency fluctuations (fALFF) has been established as a reliable indicator for investigation of abnormal spontaneous
Qian Shi, Yalan Han, Jing Tian, Gang Huang, Limin Tian, Rui Qin, Jiancang Cao, Lianping Zhao   +7 more
doaj   +2 more sources

Altered spontaneous brain activity in chronic smokers revealed by fractional ramplitude of low-frequency fluctuation analysis: a preliminary study

Scientific Reports, 2017
Although a substantial body of previous functional magnetic resonance imaging (fMRI) studies have revealed different brain responses to external stimuli in chronic cigarette smokers compared with nonsmokers, only a few studies assessed brain spontaneous ...
Chao Wang, Zhujing Shen, Peiyu Huang, Hualiang Yu, Wei Qian, Xiaojun Guan, Quanquan Gu, Yihong Yang, Minming Zhang   +8 more
doaj   +2 more sources

Altered spontaneous brain activity in children with deprivation amblyopia: a resting-state functional magnetic resonance imaging study

European Journal of Medical Research
Background To investigate the alterations in spontaneous brain activity and the similarities and differences between monocular deprivation amblyopia and binocular deprivation amblyopia.
Yadong Li, Guangying Zheng, Baohong Wen, Xiaopan Zhang   +3 more
doaj   +2 more sources

Diurnal Variations and Test-Retest Reliability of Resting-State Functional MRI Metrics. [PDF]

Hum Brain Mapp
Regional homogeneity (ReHo) exhibited the highest within‐day reliability, whereas fractional amplitude of low‐frequency fluctuations (fALFF) showed the lowest. The limbic network demonstrated the lowest reliability among the networks, with a notable mid‐morning dip at 10:00. ABSTRACT Resting‐state fMRI (rs‐fMRI) is widely used to assess intrinsic brain
Guo B, Yan K, Liu Z, Deng Y, Fu S, Zhao W, Xu J, Jiang C, Tao R, Chen X, Wang M, Mao T, Rao H.   +12 more
europepmc   +2 more sources

Age-Related Low Frequency Amplitude Differences in Resting-State Blood Oxygenation Level-Dependent Signal in the Cerebellum. [PDF]

Hum Brain Mapp
This study found that fractional amplitude of low frequency fluctuations in cerebellar Crus I/II is significantly greater in older adults as compared to younger adults. The higher amplitude in this region is associated with increased connectivity to cortical regions, and may be characteristic of healthy aging.
Korte JA, Steele CJ, Joiner WM, Fan AP.
europepmc   +2 more sources

Altered patterns of fractional amplitude of low-frequency fluctuation and regional homogeneity in abstinent methamphetamine-dependent users

Scientific Reports, 2021
Methamphetamine (MA) could induce functional and structural brain alterations in dependent subjects. However, few studies have investigated resting-state activity in methamphetamine-dependent subjects (MADs).
An Xie, Qiuxia Wu, Winson Fu Zun Yang, Chang Qi, Yanhui Liao, Xuyi Wang, Wei Hao, Yi-Yuan Tang, Jianbin Liu, Tieqiao Liu, Jinsong Tang   +10 more
doaj   +1 more source

Regions with fALFF differences between each two groups.

, 2021
Regions with fALFF differences between each two groups.
Fangmei He (11273133), Youjun Li (248448), Tian Liu (78007), Chenxi Li (1459123), Liming Fan (693731), Jue Wang (58890)   +5 more
core   +1 more source

Altered Patterns of the Fractional Amplitude of Low-Frequency Fluctuation in Drug-Naive First-Episode Unipolar and Bipolar Depression

Frontiers in Psychiatry, 2020
Background: An early and correct diagnosis is crucial for treatment of unipolar depression (UD) and bipolar disorder (BD). The fractional amplitude of low-frequency fluctuations (fALFFs) has been widely used in the study of neuropsychiatric diseases, as ...
Xue Chai, Rongrong Zhang, Chen Xue, Zonghong Li, Wang Xiao, Qingling Huang, Chaoyong Xiao, Shiping Xie   +7 more
doaj   +1 more source

Resting-state functional magnetic resonance imaging-based identification of altered brain the fractional amplitude of low frequency fluctuation in adolescent major depressive disorder patients undergoing electroconvulsive therapy

Frontiers in Psychiatry, 2022
PurposeWhile electroconvulsive therapy (ECT) has been repeatedly been shown to effectively and efficiently treat the major depressive disorder (MDD), the mechanistic basis for such therapeutic efficacy remains to be firmly established.
Xing-Yu Wang, Huan Tan, Xiao Li, Lin-Qi Dai, Zhi-Wei Zhang, Fa-Jin Lv, Ren-Qiang Yu   +6 more
doaj   +1 more source

Brain regions involved in fractional amplitude of low-frequency fluctuation in cluster headache patients: a resting-state functional MRI study

BMC Neurology, 2022
Background We used resting-state functional magnetic resonance imaging (RS-fMRI) to assess the possible pathogenic role of fALFF in CH. A limited number of studies have reported on fractional amplitude of low-frequency fluctuation (fALFF) in cluster ...
Yun Chen, Xinbo Xing, Wei Dai, Lixia Tian, Zhao Dong, Shengyuan Yu   +5 more
doaj   +1 more source