Results 181 to 190 of about 7,279 (208)
Some of the next articles are maybe not open access.

Increased ALFF and functional connectivity of the right striatum in bipolar disorder patients

Progress in Neuro-Psychopharmacology and Biological Psychiatry, 2021
Bipolar disorder (BD) is a serious neuropsychiatric disorder characterized by alternating periods of mania, depression, and euthymia. Abnormal spontaneous brain activity within the cortical-striatal neural circuits has been observed in patients with BD.
Zhifang, Zhang   +8 more
openaire   +2 more sources

An Effective Brain Imaging Biomarker for AD and aMCI: ALFF in Slow-5 Frequency Band

Current Alzheimer Research, 2021
Background: As a potential brain imaging biomarker, amplitude of low frequency fluctuation (ALFF) has been used as a feature to distinguish patients with Alzheimer’s disease (AD) and amnestic mild cognitive impairment (aMCI) from normal controls (NC).
Enyan Yu, Zhongxiang Ding, Ge XiuHong
exaly   +3 more sources

Amplitude of Low-Frequency Fluctuation (ALFF) and Fractional ALFF in Migraine Patients: A Resting-State Functional MRI Study.

Clinical Radiology, 2016
To evaluate the amplitude of low-frequency oscillations (LFOs) of the brain in migraine patients using amplitude of low-frequency fluctuation (ALFF) and fractional ALFF in the interictal period, in comparison to healthy controls (HCs).A total of 54 subjects, including 30 migraineurs and 24 gender- and age-matched HCs completed the fMRI.
J-J, Wang   +7 more
exaly   +3 more sources

Brain Functional Biomarkers Distinguishing Premature Ejaculation From Anejaculation by ALFF: A Resting-State fMRI Study

open access: yesJournal of Sexual Medicine, 2020
Abstract Introduction Premature ejaculation (PE) and anejaculation (AJ) are 2 opposite disorders of male ejaculatory dysfunction. Recent studies have demonstrated that the process of ejaculation is mediated by certain neural circuits in the brain. However, different mechanisms between PE and AJ
Chen Jianhuai, Xinfei Huang, Shaowei Liu
exaly   +3 more sources

The application of ALFF to the idiopathic complex partial seizures epilepsy of teenagers

Neurology, Psychiatry and Brain Research, 2015
Abstract Objective To detect the resting state fMRI (rfMRI) change of the complex partial seizures (CPS) epilepsy patients by employing the amplitude of low frequency fluctuation (ALFF) techniques. Methods 21 right-handed CPS patients were investigated, with age, gender and education background-matched healthy subjects in comparison.
Peng fei Qiao, Guang ming Niu
openaire   +1 more source

Amplitude of Low Frequency Fluctuation (ALFF) in the Cervical Spinal Cord With Stenosis: A Resting State fMRI Study

open access: yesPLoS ONE, 2016
Cervical spondylotic myelopathy (CSM) is a common spinal cord dysfunction disease with complex symptoms in clinical presentation. Resting state fMRI (rsfMRI) has been introduced to study the mechanism of neural development of CSM. However, most of those studies focused on intrinsic functional connectivity rather than intrinsic regional neural activity ...
Ed X Wu, Yong Hu
exaly   +7 more sources

WITHDRAWN: Spontaneous brain activity in medication-naive ADHD boys revealed by ALFF analysis

Brain and Development, 2010
This article has been withdrawn at the request of the author and editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
Hong, Yang   +3 more
openaire   +2 more sources

Exploring Spontaneous Brain Activity Changes in High-Altitude Smokers: Insights From ALFF/fALFF Analysis

Brain and Cognition
This study aims to explore the impact of smoking on intrinsic brain activity among high-altitude (HA) populations. Smoking is associated with various neural alterations, but it remains unclear whether smokers in HA environments exhibit specific neural characteristics.We employed ALFF and fALFF methods across different frequency bands to investigate ...
Longyao Ma, Qingqing Lv, Ning Zheng
exaly   +4 more sources

Gray Matter Structural and Functional Brain Abnormalities in Parkinson’s Disease: A Meta-Analysis of VBM and ALFF Data

Journal of Neurology
Previous studies based on resting-state functional imaging and voxel-based morphometry (VBM) have revealed structural and functional alterations in several brain regions in patients with Parkinson's disease (PD), but their results have been inconsistent. Furthermore, no studies have investigated specific and common functional and structural alterations
Lihua Zhuo, Ruishan Liu
exaly   +3 more sources

Prediction of Anhedonia in Patients With First-Episode Schizophrenia Using a Wavelet-ALFF-Based Support Vector Regression Model

open access: yesNeuroscience
Anhedonia is one of the core features of the negative symptoms of schizophrenia and can be extremely burdensome. Our study applied resting-state functional magnetic resonance imaging (fMRI)-based support vector regression (SVR) to predict anhedonia in patients with first-episode schizophrenia (FES) and analysed the correlation between the wavelet-based
Yingjun Zheng, Haijing Li
exaly   +3 more sources

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