Results 171 to 180 of about 7,279 (208)

ALFF Response Interaction With Learning During Feedback in Individuals With Multiple Sclerosis

open access: yesMultiple Sclerosis and Related Disorders, 2023
Amplitude of low-frequency fluctuations (ALFF) is defined as changes of BOLD signal during resting state (RS) brain activity. Previous studies identified differences in RS activation between healthy and multiple sclerosis (MS) participants.
Bharat B. Biswal   +2 more
exaly   +4 more sources

Amplitude of Low-Frequency Fluctuation (ALFF) May Be Associated With Cognitive Impairment in Schizophrenia: A Correlation Study [PDF]

open access: yesBMC Psychiatry, 2019
Background Cognitive impairments are prominent in schizophrenia (SZ). Imaging studies have demonstrated that functional changes of several areas of the brain exist in SZ patients.
Yanqing Tang, Jia Duan, Yifang Zhou
exaly   +5 more sources

Decreased ALFF and Functional Connectivity of the Thalamus in Vestibular Migraine Patients

open access: yesBrain Sciences, 2023
Background: The thalamus has been reported to be associated with pain modulation and processing. However, the functional changes that occur in the thalamus of vestibular migraine (VM) patients remain unknown. Methods: In total, 28 VM patients and 28 healthy controls who were matched for age and sex underwent resting-state functional magnetic resonance ...
Min Tang, Xia Zhe, Kai Ai
exaly   +4 more sources

An Improved Approach to Detection of Amplitude of Low-Frequency Fluctuation (ALFF) for Resting-State fMRI: Fractional ALFF [PDF]

open access: yesJournal of Neuroscience Methods, 2008
Most of the resting-state functional magnetic resonance imaging (fMRI) studies demonstrated the correlations between spatially distinct brain areas from the perspective of functional connectivity or functional integration. The functional connectivity approaches do not directly provide information of the amplitude of brain activity of each brain region ...
Xi-Nian Zuo, Chaozhe Zhu, Yu-Feng Zang
exaly   +4 more sources

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