Results 31 to 40 of about 173,727,387 (260)

Increased Dynamic Amplitude of Low Frequency Fluctuation in Primary Insomnia [PDF]

open access: yesFrontiers in Neurology, 2020
Le mécanisme physiologique sous-jacent à l'insomnie primaire (IP) est mal compris. L'imagerie par résonance magnétique fonctionnelle (IRMf) au repos est devenue un outil puissant pour explorer l'IP. Cependant, des études antérieures ignorent la dynamique de l'activité cérébrale. Dans la présente étude, nous avons cherché à explorer l'activité cérébrale
Xianyun Meng   +10 more
openaire   +3 more sources

Mean amplitude of low frequency fluctuations measured by fMRI at 11.7 T in the aging brain of mouse lemur primate. [PDF]

open access: yesSci Rep, 2023
International audienceNon-human primates are a critical species for the identification of key biological mechanisms in normal and pathological aging.
Garin CM, Dhenain M.
europepmc   +2 more sources

Assessment of alterations in regional homogeneity and amplitude of low-frequency fluctuations in children with dyslexia. [PDF]

open access: yesTurk J Med Sci
Background/aim: Exploratory methods in neuroimaging are gaining increasing attention for revealing functional connectivity structures across the entire brain. This study aims to contribute to the understanding of the functional mechanisms underlying dyslexia, along with the effects of specialized education for dyslexia treatment, by utilizing measures ...
Demirci E   +5 more
europepmc   +3 more sources

The relevance of fractional amplitude of low-frequency fluctuation to interference effect [PDF]

open access: yesBehavioural Brain Research, 2016
Growing evidence has indicated a potential connection between resting-state functional magnetic resonance imaging (RS-fMRI) signal and cognitive performance. However, the relationship between intrinsic neural activity and behavioral interference effect on cognitive control has been poorly understood. In the present study, seventy-eight healthy subjects
Yuqin, Deng   +3 more
openaire   +2 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   +2 more sources

Altered Patterns of the Fractional Amplitude of Low-Frequency Fluctuation in Drug-Naive First-Episode Unipolar and Bipolar Depression

open access: yesFrontiers in Psychiatry, 2020
Background: An early and correct diagnosis is crucial for treatment of unipolar depression (UD) and bipolar disorder (BD). The fractional amplitude of low-frequency fluctuations (fALFFs) has been widely used in the study of neuropsychiatric diseases, as ...
Xue Chai   +7 more
doaj   +1 more source

Resting‐state amplitude of low‐frequency fluctuation is associated with suicidal ideation [PDF]

open access: yesDepression and Anxiety, 2019
Identifying brain activity patterns that are associated with suicidal ideation (SI) may help to elucidate its pathogenesis and etiology. Suicide poses a significant public health problem, and SI is a risk factor for suicidal behavior.Forty-one unmedicated adult participants in a major depressive episode (MDE), 26 with SI on the Beck Scale for Suicidal ...
Martin J. Lan   +8 more
openaire   +2 more sources

Machine learning for detecting Wilson's disease by amplitude of low-frequency fluctuation

open access: yesHeliyon, 2023
Wilson's disease (WD) is a genetic disorder with the A7P7B gene mutations. It is difficult to diagnose in clinic. The purpose of this study was to confirm whether amplitude of low-frequency fluctuations (ALFF) is one of the potential biomarkers for the diagnosis of WD.
Bing Zhang   +3 more
openaire   +3 more sources

Amplitude of low-frequency fluctuations in childhood-onset schizophrenia with or without obsessive-compulsive symptoms: a resting-state functional magnetic resonance imaging study

open access: yesArchives of Medical Science, 2018
Introduction Childhood-onset schizophrenia with obsessive-compulsive symptoms (COSO) and without obsessive-compulsive symptoms (COS) share considerable overlap in clinical features and genetic risk factors.
Yinghui Liang   +5 more
doaj   +1 more source

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