Results 11 to 20 of about 176,078,744 (269)

Children with strabismus and amblyopia presented abnormal spontaneous brain activities measured through fractional amplitude of low-frequency fluctuation (fALFF) [PDF]

open access: yesFrontiers in Neurology, 2022
PurposeBased on fMRI technology, we explored whether children with strabismus and amblyopia (SA) showed significant change in fractional amplitude of low-frequency fluctuation (fALFF) values in specific brain regions compared with healthy controls and ...
Xiao-Qin Hu   +12 more
doaj   +4 more sources

Fractional amplitude of low‐frequency fluctuation changes of specific cerebral regions in patients with toothache: A functional magnetic resonance imaging study [PDF]

open access: yesBrain and Behavior, 2023
Background Previous studies have indicated that pain‐related diseases can result in significant functional alterations in the brain. However, differences in spontaneous brain activity in toothache (TA) patients remain unclear.
Jun Yang   +11 more
doaj   +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 ...
Xiaoya Fu   +7 more
doaj   +5 more sources

Altered Patterns of the Fractional Amplitude of Low-Frequency Fluctuation and Functional Connectivity Between Deficit and Non-Deficit Schizophrenia [PDF]

open access: yesFrontiers in Psychiatry, 2019
Objective: A limited number of studies have previously reported on the regional activity [amplitude of low-frequency fluctuation (ALFF)] and functional integration [functional connectivity (FC)] of the whole brain in deficit schizophrenia (DS).
Chao Zhou   +7 more
doaj   +5 more sources

Alterations of amplitude of low-frequency fluctuations and fractional amplitude of low-frequency fluctuations in end-stage renal disease on maintenance dialysis: An activation likelihood estimation meta-analysis

open access: yesFrontiers in Human Neuroscience, 2022
BackgroundCognitive impairment (CI) is a common complication of end-stage renal disease (ESRD). Many resting-state functional magnetic resonance imaging (rs-fMRI) studies have identified abnormal spontaneous low-frequency brain activity in ESRD dialysis ...
Huiling Cao   +6 more
doaj   +3 more sources

Spontaneous Brain Activities in Hyperthyroidism Patients Assessed Using Fractional Amplitude of Low-frequency Fluctuation [PDF]

open access: yesZhongguo quanke yixue, 2022
Background Hyperthyroidism is a common endocrine psychosomatic disease, which is often accompanied by negative emotions, seriously affecting the prognosis of patients.
WU Xiaoran, WANG Xiaoyue, GENG Yibo, ZHANG Hongxing, ZHANG Haisan
doaj   +2 more sources

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

open access: yesBrain 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   +11 more
openaire   +4 more sources

Percent amplitude of fluctuation: A simple measure for resting-state fMRI signal at single voxel level.

open access: yesPLoS ONE, 2020
The amplitude of low-frequency fluctuation (ALFF) measures resting-state functional magnetic resonance imaging (RS-fMRI) signal of each voxel. However, the unit of blood oxygenation level-dependent (BOLD) signal is arbitrary and hence ALFF is sensitive ...
Xi-Ze Jia   +9 more
doaj   +2 more sources

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

open access: yesJournal 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   +7 more
doaj   +3 more sources

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

open access: yesFrontiers in Medicine, 2022
Ying Liang   +9 more
doaj   +2 more sources

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