Results 11 to 20 of about 173,686,371 (130)

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

Journal of Integrative Neuroscience, 2023
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   +4 more sources

Gradual Disturbances of the Amplitude of Low-Frequency Fluctuations (ALFF) and Fractional ALFF in Alzheimer Spectrum

Frontiers in Neuroscience, 2018
Background: Alzheimer’s disease (AD) is a common neurodegenerative disease in which the brain undergoes alterations for decades before symptoms become obvious.
Liu Yang, Yan Yan, Yonghao Wang, Xiaochen Hu, Jie Lu, Piu Chan, Piu Chan, Piu Chan, Tianyi Yan, Ying Han, Ying Han, Ying Han, Ying Han   +12 more
doaj   +6 more sources

Altered Amplitude of Low-Frequency Fluctuations in Inactive Patients with Nonneuropsychiatric Systemic Lupus Erythematosus

Neural Plasticity, 2019
Objective.This study is aimed at investigating the characteristics of the spontaneous brain activity in inactive patients with nonneuropsychiatric systemic lupus erythematosus (non-NPSLE). Methods.
Yang Yu, Liheng Chen, Qiaohong Wang, Lingzhen Hu, Qiuping Ding, Xize Jia, Xuyan Yang   +6 more
doaj   +2 more sources

Association Between Fractional Amplitude of Low-Frequency Spontaneous Fluctuation and Degree Centrality in Children and Adolescents

Brain Connectivity, 2019
The fractional amplitude of low-frequency fluctuations (fALFFs) of the BOLD signal have been successfully applied as exploratory tools in neuroimaging. This metric has been useful in mapping brain functional changes in many clinical populations. However, little is known about the neurophysiological correlates of fALFF. This study aimed at demonstrating
João Ricardo Sato, Claudinei Eduardo Biazoli Jr., Luciana Monteiro Moura, Nicolas Crossley, André Zugman, Felipe Almeida Picon, Marcelo Queiroz Hoexter, Edson Amaro Jr., Euripedes Constantino Miguel, Luis Augusto Rohde, Rodrigo Affonseca Bressan, Andrea Parolin Jackowski   +11 more
openaire   +4 more sources

Diagnostic value of regional homogeneity and fractional amplitude of low-frequency fluctuations in the classification of schizophrenia and bipolar disorders [PDF]

European Archives of Psychiatry and Clinical Neuroscience
Abstract Schizophrenia (SCZ) and bipolar disorders (BD) show significant neurobiological and clinical overlap. In this study, we wanted to identify indexes of intrinsic brain activity that could differentiate these disorders. We compared the diagnostic value of the fractional amplitude of low-frequency fluctuations (fALFF) and regional ...
Cattarinussi G., Di Camillo F., Grimaldi D. A., Sambataro F.   +3 more
core   +6 more sources

Fractional amplitude of low-frequency fluctuations during music-evoked autobiographical memories in neurotypical older adults

Frontiers in Neuroscience
IntroductionResearchers have shown that music-evoked autobiographical memories (MEAMs) can stimulate long-term memory mechanisms while requiring little retrieval effort and may therefore be used in promising non-pharmacological interventions to mitigate ...
Teresa Lesiuk, Kaitlyn Dillon, Giulia Ripani, Ioannis Iliadis, Gabriel Perez, Bonnie Levin, Xiaoyan Sun, Roger McIntosh   +7 more
doaj   +3 more sources

Delay discounting is associated with the fractional amplitude of low-frequency fluctuations and resting-state functional connectivity in late adolescence [PDF]

Scientific Reports, 2017
AbstractAs a component of self-regulation, delay discounting (DD) refers to an individual’s tendency to prefer smaller-but-sooner rewards over larger-but-later rewards and plays an essential role in many aspects of human behavior. Although numerous studies have examined the neural underpinnings of DD in adults, there are far fewer studies focusing on ...
Wang, Song, Zhou, Ming, Chen, Taolin, Yang, Xun, Chen, Guangxiang, Gong, Qiyong   +5 more
openaire   +3 more sources

Fractional amplitude of low-frequency fluctuations and functional connectivity in comatose patients subjected to resting-state functional magnetic resonance imaging

Annals of Indian Academy of Neurology, 2019
Objective: The objective of the study is to investigate the changes of fractional amplitude of low-frequency fluctuations (fALFFs) and functional connectivity (FC) in the brain function of comatose patients with resting-state blood-oxygenation-level ...
Lixuan Huang, Yan Zheng, Zisan Zeng, Muyan Li, Ling Zhang, Yang Gao   +5 more
doaj   +2 more sources

Altered Fractional Amplitude of Low-Frequency Fluctuation in Major Depressive Disorder and Bipolar Disorder [PDF]

Frontiers in Psychiatry, 2021
Background: Discriminating between major depressive disorder (MDD) and bipolar disorder (BD) remains challenging and cognitive deficits in MDD and BD are generally recognized. In this study, the fractional amplitude of low-frequency fluctuation (fALFF) approach was performed to explore neural activity and cognition in first-episode, drug-naïve BD and ...
Yan Qiu, Min Yang, Sujuan Li, Ziwei Teng, Kun Jin, Chujun Wu, Xuelei Xu, Jindong Chen, Hui Tang, Jing Huang, Hui Xiang, Wenbin Guo, Bolun Wang, Haishan Wu   +13 more
openaire   +3 more sources

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

Scientific Reports, 2021
AbstractMethamphetamine (MA) could induce functional and structural brain alterations in dependent subjects. However, few studies have investigated resting-state activity in methamphetamine-dependent subjects (MADs). We aimed to investigate alterations of brain activity during resting-state in MADs using fractional amplitude of low-frequency ...
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
openaire   +3 more sources