نتایج جستجو برای: resting state fmri functional connectivity
تعداد نتایج: 1478880 فیلتر نتایج به سال:
Purpose: Chronic subjective tinnitus may arise from aberrant functional coupling between the cerebellum and the cerebral cortex. To explore this hypothesis, we used resting-state functional magnetic resonance imaging (fMRI) to illuminate the functional connectivity network of the cerebellar regions in chronic tinnitus patients and controls. Methods: Resting-state fMRI scans were obtained from 2...
Hemodynamic response function (HRF) variability confounds resting-state fMRI functional connectivity
BACKGROUND Convergent studies provide support for abnormalities in the structure and functioning of the prefrontal cortex (PFC) and the amygdala, the key components of the neural system that subserves emotional processing in major depressive disorder (MDD). We used resting-state functional magnetic resonance imaging (fMRI) to examine potential amygdala-PFC functional connectivity abnormalities ...
In honor of Dr. James S. Hyde’s contributions to the field of functional magnetic resonance imaging (fMRI) and resting-state functional connectivity magnetic resonance imaging (rs-fcMRI), we, the current and former graduate students, postdoctoral researchers, faculty colleagues, and academic friends, dedicate this two-issue special Festschrift publication series to him. We begin this publicatio...
Identifying Neuroimaging Markers of Motor Disability in Acute Stroke by Machine Learning Techniques.
Conventional mass-univariate analyses have been previously used to test for group differences in neural signals. However, machine learning algorithms represent a multivariate decoding approach that may help to identify neuroimaging patterns associated with functional impairment in "individual" patients. We investigated whether fMRI allows classification of individual motor impairment after stro...
A major challenge in central nervous system (CNS) drug research is to develop a generally applicable methodology for repeated measurements of drug effects on the entire CNS, without task-related interactions and a priori models. For this reason, data-driven resting-state fMRI methods are promising for pharmacological research. This study aimed to investigate whether different psychoactive subst...
In this pilot study, amygdala connectivity related to trauma symptoms was explored using resting-state functional magnetic resonance imaging (R-fMRI) in 23 healthy adolescents ages 13-17 years with no psychiatric diagnoses. Adolescents completed a self-report trauma symptom checklist and a R-fMRI scan. We examined the relationship of trauma symptoms to resting-state functional connectivity of t...
Purpose Functional MRI (fMRI) has been used in detecting task-related hemodynamic responses following neuronal activation. Spontaneous low frequency fMRI signal fluctuations at resting state have emerged as another means to study brain function (1). The mechanism underlying these fluctuations in the brain has remained elusive and its neural origin still debatable. A major concern in studying th...
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