Individual Thresholding of Voxel-based Functional Connectivity Maps
نویسندگان
چکیده
منابع مشابه
Individual Thresholding of Voxel-based Functional Connectivity Maps
Introduction: This article is part of the Focus Theme of Methods of Information in Medicine on “Biosignal Interpretation: Advanced Methods for Neural Signals and Images”. Background: Voxel-based functional connectivity analysis is a common method for resting state fMRI data. However, correlations between the seed and other brain voxels are corrupted by random estimate errors yielding false conn...
متن کاملIndividual Thresholding of Voxel-based Functional Connectivity Maps. Estimation of Random Errors by Means of Surrogate Time Series.
INTRODUCTION This article is part of the Focus Theme of Methods of Information in Medicine on "Biosignal Interpretation: Advanced Methods for Neural Signals and Images". BACKGROUND Voxel-based functional connectivity analysis is a common method for resting state fMRI data. However, correlations between the seed and other brain voxels are corrupted by random estimate errors yielding false conn...
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Voxel-level functional connectivity using spatial regularization
Discovering functional connectivity between and within brain regions is a key concern in neuroscience. Due to the noise inherent in fMRI data, it is challenging to characterize the properties of individual voxels, and current methods are unable to flexibly analyze voxel-level connectivity differences. We propose a new functional connectivity method which incorporates a spatial smoothness constr...
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Introduction: Functional Connectivity MRI (fcMRI) has become a useful tool for delineating brain networks that show functional connectivity based on resting-state correlations [1,2]. The improved sensitivity and resolution of functional MRI from advances in array coils and higher field strength allows resting state networks to be probed at higher spatial resolution, providing a tradeoff between...
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ژورنال
عنوان ژورنال: Methods of Information in Medicine
سال: 2015
ISSN: 0026-1270,2511-705X
DOI: 10.3414/me13-02-0042