Results 11 to 20 of about 173,727,387 (260)

Abnormal amplitude of low-frequency fluctuations and functional connectivity in patients with primary dysmenorrhea [PDF]

open access: yesFrontiers in Integrative Neuroscience
ObjectiveThis study utilized resting-state functional magnetic resonance imaging (rs-fMRI) to investigate changes in the spontaneous activity of the default mode network (DMN) in patients with primary dysmenorrhea (PD) through amplitude of low-frequency ...
Zili Zhu   +8 more
doaj   +5 more sources

Frequency-Specific Changes of Amplitude of Low-Frequency Fluctuations in Patients with Acute Basal Ganglia Ischemic Stroke [PDF]

open access: yesNeural Plasticity, 2022
Objective. The purpose of this study was to investigate the characteristics of different frequency bands in the spontaneous brain activity among patients with acute basal ganglia ischemic stroke (BGIS). Methods. In the present study, thirty-four patients
Xuemei Quan   +9 more
doaj   +3 more sources

Frequency-Specific Alternations in the Amplitude of Low-Frequency Fluctuations in Chronic Tinnitus [PDF]

open access: yesFrontiers in Neural Circuits, 2015
Tinnitus, a phantom ringing, buzzing or hissing sensation with potentially debilitating consequences, is thought to arise from aberrant spontaneous neural activity at one or more sites within the central nervous system; however, the location and specific
Yu-Chen eChen   +10 more
doaj   +3 more sources

Frequency‐specific alternations in the amplitude of low‐frequency fluctuations in schizophrenia [PDF]

open access: yesHuman Brain Mapping, 2012
Schizophrenia has been associated with abnormal task‐related brain activation in sensory and motor regions as well as social cognition network. Recently, two studies investigated temporal correlation between resting‐state functional magnetic resonance imaging (R‐fMRI) low‐frequency oscillations (LFOs) in schizophrenia but reported mixed results.
Yu, Rongjun   +8 more
openaire   +4 more sources

Frequency-dependent changes in the amplitude of low-frequency fluctuations in Internet gaming disorder [PDF]

open access: yesFrontiers in Psychology, 2015
Neuroimaging studies have revealed that the task-related functional brain activities are impaired in Internet gaming disorder (IGD) subjects. However, little is known about the alternations in spontaneous brain activities about them.
Xiao eLin   +3 more
doaj   +3 more sources

Altered Dynamic Amplitude of Low-Frequency Fluctuations in Patients With Migraine Without Aura [PDF]

open access: yesFrontiers in Human Neuroscience, 2021
Migraine is a chronic and idiopathic disorder leading to cognitive and affective problems. However, the neural basis of migraine without aura is still unclear. In this study, dynamic amplitude of low-frequency fluctuations (dALFF) analyses were performed
Hong Chen   +9 more
doaj   +3 more sources

The influence of the amplitude of low-frequency fluctuations on resting-state functional connectivity [PDF]

open access: yesFrontiers 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
Xin eDi   +5 more
doaj   +3 more sources

Increased amplitude of low frequency fluctuations but normal hippocampal-default mode network connectivity in schizophrenia [PDF]

open access: yesFrontiers in Psychiatry, 2015
Background: Clinical and preclinical studies have established that the hippocampus is hyperactive in schizophrenia, making it a possible biomarker for drug development.
Maureen eMcHugo   +5 more
doaj   +2 more sources

Altered low-frequency oscillation amplitude of resting state-fMRI in patients with discogenic low-back and leg pain

open access: yesJournal of Pain Research, 2018
Fuqing Zhou,1,2 Lili Gu,3 Shunda Hong,1,2 Jiaqi Liu,1,2 Jian Jiang,1,2 Muhua Huang,1,2 Yong Zhang,3 Honghan Gong1,2 1Department of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi, People’s Republic of China ...
Zhou F   +7 more
doaj   +1 more source

Static and Dynamic Changes of Amplitude of Low-Frequency Fluctuations in Cervical Discogenic Pain [PDF]

open access: yesFrontiers in Neuroscience, 2020
Cervical discogenic pain (CDP) is a clinically common pain syndrome caused by cervical disk degeneration. A large number of studies have reported that CDP results in brain functional impairments.
Mingyue Ma   +7 more
doaj   +3 more sources

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