Results 71 to 80 of about 7,279 (208)

Differences in the spatial patterns of ALFF.

open access: yes, 2013
(A) ALFF differences between ALS and control groups without GM correction. There were significant decreased ALFF in visual cortex, fusiform gyrus and right postcentral gyrus, as well as increased ALFF in left middle frontal lobe.
Qin Chen (44010)   +8 more
core   +1 more source

ALFF values of healthy subjects and CSM patients (mean ± SEM).

open access: yes, 2016
ALFF values of healthy subjects and CSM patients (mean ± SEM).
Xiang Li (114679)   +6 more
core   +1 more source

Dynamic Changes in ALFF and DC in Subthreshold Depression Before and After ICBT Intervention

open access: yesNeuropsychiatric Disease and Treatment
Subthreshold depression (SD) is a highly prevalent mental health condition and a key precursor in major depressive disorder. Internet-based cognitive behavioral therapy (ICBT) effectively treats SD in clinical settings, but the neuromechanisms behind its success are not fully understood.
Yu Wang   +10 more
openaire   +4 more sources

Alterations of cerebral intrinsic activity in first-episode, drug-naive patients with major depressive disorder

open access: yesBJPsych Open
Background Major depressive disorder (MDD) is a leading cause of disability worldwide. Investigating early-stage alterations in cerebral intrinsic activity among drug-naive patients may enhance our understanding of MDD’s neurobiological mechanisms and ...
Xiaoxiao Hu   +8 more
doaj   +1 more source

Posture‐Related Regional Homogeneity Abnormalities in Cerebral Small Vessel Disease: A Multi‐Position MRI Study

open access: yesCNS Neuroscience &Therapeutics, Volume 32, Issue 9, September 2026.
Patients with CSVD showed higher upright ReHo in anterior cingulate gyrus (ACG) than NCs, and supine‐upright comparison revealed widespread ReHo alterations. Upright ACG ReHo and posture‐related ReHo changes in the hippocampus, putamen, and calcarine cortex were associated with poorer cognition and greater CSVD burden, suggesting that upright imaging ...
Yukun Zhang   +13 more
wiley   +1 more source

ALFF result in participants with CD compared to TD participants.

open access: yes, 2015
ALFF result in participants with CD compared to TD participants.
Nailin Yao (713923)   +4 more
core   +1 more source

The meaning and interpretation of ALFF and fALFF

open access: yes
Abstract The amplitude of low-frequency fluctuations (ALFF) and its fractional counterpart (fALFF) are widely reported measures of resting-state fMRI signals, but their precise physiological interpretation has not been established. We derive expressions for ALFF and fALFF using a closed-form hemodynamic transfer function which allows ...
John Gore   +7 more
openaire   +1 more source

Amplitude of Low Frequency Fluctuation (ALFF) study of the spontaneous brain activities of patients with phantom limb pain.

open access: yesEuropean review for medical and pharmacological sciences, 2018
Our objective was to use Amplitude of Low-Frequency Fluctuation (ALFF) method to investigate the changes in spontaneous brain activity in HM patients and their relationships with clinical features.This study was set out to observe, using Functional magnetic resonance imaging (fMRI), the changes in spontaneous brain activity in patients with phantom ...
Du, J.-G., Xiao, H., Zuo, Y.-X.
openaire   +2 more sources

Specific frequency bands of amplitude low-frequency fluctuations in memory-related cognitive impairment: predicting Alzheimer’s disease

open access: yesADMET and DMPK, 2015
Resting-state functional magnetic resonance imaging was utilized to measure the amplitude low frequency fluctuations (ALFF) in human subjects with Alzheimer’s disease (AD) and normal control (NC).
Yin Tian   +8 more
doaj   +1 more source

Candidate Right Locus Coeruleus‐Centered Symptom Pathways in Young Major Depressive Disorder: A Multimodal Magnetic Resonance Imaging Study

open access: yesHuman Brain Mapping, Volume 47, Issue 12, August 15, 2026.
In young major depressive disorder, substantia nigra and locus coeruleus qMRI phenotypes were linked to functional network organization and depressive severity through right locus coeruleus‐centered connectivity pathways. ABSTRACT Major depressive disorder (MDD) involves network‐level abnormalities that may reflect dysfunction in catecholaminergic ...
Zesong Yuan   +9 more
wiley   +1 more source

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