Results 21 to 30 of about 173,686,371 (130)

Altered fractional amplitude of low-frequency fluctuation in women with premenstrual syndrome via acupuncture at Sanyinjiao (SP6) [PDF]

open access: yesAnnals of General Psychiatry, 2020
Abstract Background Premenstrual syndrome (PMS) is a prevalent gynecological disease and is significantly associated with abnormal neural activity. Acupuncture is an effective treatment on PMS in clinical practice. However, few studies have been performed to investigate whether acupuncture might modulate the abnormal ...
Gaoxiong Duan   +12 more
openaire   +3 more sources

Frequency-dependent changes in the amplitude of low-frequency fluctuations in patients with Wilson’s disease: a resting-state fMRI study [PDF]

open access: yes, 2017
To investigate the frequency-dependent changes in the amplitude of low-frequency fluctuations (ALFF) in patients with Wilson's disease (WD). Resting-state function magnetic resonance imaging (R-fMRI) were employed to measure the amplitude of ALFF ...
Yongqiang Yu   +10 more
core   +1 more source

Characteristics of the Fractional Amplitude of Low-Frequency Fluctuation in Ocular Hypertension Patients: A Resting-State fMRI Study

open access: yesFrontiers in Medicine, 2022
Background The fractional amplitude of low-frequency fluctuation (fALFF) method has been underutilized in research on the pathogenesis and clinical manifestations of ocular hypertension (OH). Purpose This study uses resting state ...
Liang, Ying   +9 more
openaire   +3 more sources

Intrinsic brain abnormalities of irritable bowel syndrome with diarrhea: a preliminary resting-state functional magnetic resonance imaging study

open access: yesBMC Medical Imaging, 2021
Background The aim of the present study was to explore the brain active characteristics of patients with irritable bowel syndrome with diarrhea (IBS-D) using resting-state functional magnetic resonance imaging technology.
Weiqun Ao   +8 more
doaj   +1 more source

Abnormal fractional amplitude of low-frequency fluctuations in MOG-lgG optic neuritis patients: a resting-state functional MRI study

open access: yesJournal of Integrative Neuroscience, 2022
Optic neuritis (ON) is a general term for inflammation of any part of the optic nerve resulting from demyelination or infection. The number of patients with MOG-lgG antibody-related optic neuritis is increasing recently.
Hong-Wu Yang   +7 more
doaj   +1 more source

Abnormalities in the Fractional Amplitude of Low-Frequency Fluctuation and Functional Connectivity in Parkinson's Disease With Excessive Daytime Sleepiness

open access: yesFrontiers in Aging Neuroscience, 2022
BackgroundExcessive daytime sleepiness (EDS) is one of the most important non-motor symptoms of Parkinson's disease (PD), and its neuropathologic basis is still unclear.ObjectiveThis study investigated the changes of neuronal activity in PD patients with EDS (PD-EDS) in the resting state.MethodsForty-three PD patients were recruited and divided into ...
Yuheng Zi   +17 more
openaire   +3 more sources

Shared and Distinct Fractional Amplitude of Low-Frequency Fluctuation Patterns in Major Depressive Disorders With and Without Gastrointestinal Symptoms [PDF]

open access: yesFrontiers in Psychiatry, 2021
Objective: Gastrointestinal (GI) symptoms are fairly common somatic symptoms in depressed patients. The purpose of this study was to explore the influence of concomitant GI symptoms on the fractional amplitude of low-frequency fluctuation (fALFF) patterns in patients with major depressive disorder (MDD) and investigate the connection between aberrant ...
Xiaoya Fu   +7 more
openaire   +3 more sources

Feature and decision-level fusion for schizophrenia detection based on resting-state fMRI data.

open access: yesPLoS ONE, 2022
Mental disorders, especially schizophrenia, still pose a great challenge for diagnosis in early stages. Recently, computer-aided diagnosis techniques based on resting-state functional magnetic resonance imaging (Rs-fMRI) have been developed to tackle ...
Ali H Algumaei   +3 more
doaj   +2 more sources

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

open access: yes, 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
core   +1 more source

A design methodology to enable sampling PLLs to synthesise fractional-N frequencies [PDF]

open access: yes, 2011
A novel design methodology is proposed to enable sampling phase-locked loops (SPLL) to synthesise fractional-N frequencies. To date, SPLL can only generate integer-N frequencies.
Xu, Tao   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy