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Interpreting Temporal Fluctuations In Resting-State Functional Connectivity MRI [article]

Raphael Liegeois, Timothy O. Laumann, Abraham Z. Snyder, Juan Zhou, B. T. Thomas Yeo
2017 bioRxiv   pre-print
Temporal fluctuations in functional connectivity, i.e., dynamic functional connectivity (dFC), are thought to reflect dynamic changes in brain organization and non-stationary switching of discrete brain  ...  Resting-state functional connectivity is a powerful tool for studying human functional brain networks.  ...  twitter threads on this topic ( 23616 and 4586025984), which have helped to shape certain subtle points in  ... 
doi:10.1101/135681 fatcat:26d2p26y5jh7biryp3bk4pshiq

Mapping functional connectivity based on synchronized CMRO2 fluctuations during the resting state

Changwei W. Wu, Hong Gu, Hanbing Lu, Elliot A. Stein, Jyh-Horng Chen, Yihong Yang
2009 NeuroImage  
INTRODUCTION Synchronized low-frequency fluctuations in the resting-state functional MRI (fMRI) signal have been suggested to be associated with functional connectivity in brain networks (1).  ...  To better interpret the resting signal, we examined spontaneous fluctuations at the level of cerebral metabolic rate of oxygenation (CMRO 2 ), an index reflecting regional oxygen consumption and metabolism  ...  INTRODUCTION Synchronized low-frequency fluctuations in the resting-state functional MRI (fMRI) signal have been suggested to be associated with functional connectivity in brain networks (1) .  ... 
doi:10.1016/j.neuroimage.2008.12.066 pmid:19280693 pmcid:PMC2775537 fatcat:725qv4gs4ffb5on6he7hwhpevu

Spatio-Temporal Correlation Tensors Reveal Functional Structure in Human Brain

Zhaohua Ding, Allen T. Newton, Ran Xu, Adam W. Anderson, Victoria L. Morgan, John C. Gore, Yu-Feng Zang
2013 PLoS ONE  
These observations suggest that MRI signal variations from within white matter in a resting state may convey similar information as their corresponding fluctuations of MRI signals in gray matter.  ...  We demonstrate that MRI signal variations and power spectra in a resting state are largely comparable between gray matter and white matter, that there are temporal correlations of fMRI signals that persist  ...  In addition, evaluations of the temporal correlations between voxels of low frequency BOLD fluctuations in a resting or steady state are believed to provide direct measurements of the functional connectivity  ... 
doi:10.1371/journal.pone.0082107 pmid:24339997 pmcid:PMC3855380 fatcat:gauxep74mbhppboh6coi4vrhcq

Detecting Perfusion Pattern Based on the Background Low-Frequency Fluctuation in Resting-State Functional Magnetic Resonance Imaging Data and Its Influence on Resting-State Networks: An Iterative Postprocessing Approach

Tianyi Qian, Davide Zanchi, Cristelle Rodriguez, Marine Ackermann, Panteleimon Giannakopoulos, Sven Haller
2017 Brain Connectivity  
The functional connectivity map of default mode network of each participant was then calculated by using the seed-to-voxel analysis in the REST toolbox.  ...  Moreover, significant changes notably in the default mode network (DMN), including medial pre-frontal cortex (t=11.95), posterior cingulate cortex (t=11.52), right middle temporal lobe (t=10.72) and right  ...  Brain Connectivity Detecting Perfusion Pattern based on the Background Low-frequency Fluctuation in Resting-State Functional MRI Data and its Influence on Resting-State Networks: An Iterative Post-processing  ... 
doi:10.1089/brain.2017.0545 pmid:29117709 fatcat:picwvbmfs5glldeqmkxfv7pw4u

Resting-State BOLD MRI for Perfusion and Ischemia

Hannes Kroll, Greg Zaharchuk, Thomas Christen, Jeremy J. Heit, Michael Iv
2017 Topics in Magnetic Resonance Imaging (TMRI)  
) functional MRI (rs-fMRI) are increasingly used to evaluate patients with acute ischemic stroke.  ...  Advanced imaging techniques including CT angiography, CT perfusion, MR angiography, MR with diffusion-and perfusion-weighted imaging, and, more recently, resting-state BOLD (Blood Oxygen Level Dependent  ...  In addition, JH is supported by the Radiological Society of North America Research Scholar Award RSCH1610.  ... 
doi:10.1097/rmr.0000000000000119 pmid:28277456 pmcid:PMC5380475 fatcat:kfaofmuijvabhohaibwevzi244

Dynamics of large-scale fMRI networks: Deconstruct brain activity to build better models of brain function

Fikret Işık Karahanoğlu, Dimitri Van De Ville
2017 Current Opinion in Biomedical Engineering  
Liégeois R, Laumann TO, Snyder AZ, Zhou HJ, Yeo BTT: Interpreting temporal fluctuations in resting-state functional connectivity MRI.  ...  In this review, we discuss the state-of-the-art in timeresolved fMRI data analysis since the first reports of moment-to-moment fluctuations in functional connectivity [10, 11] .  ... 
doi:10.1016/j.cobme.2017.09.008 fatcat:oo4evu6w2jgtvbithzy3emlyny

Structural substrates for resting network disruption in temporal lobe epilepsy

Natalie L. Voets, Christian F. Beckmann, David M. Cole, SeokJun Hong, Andrea Bernasconi, Neda Bernasconi
2012 Brain  
Our multimodal imaging study suggests that in temporal lobe epilepsy, cortical atrophy and microstructural white matter damage impact functional resting connectivity.  ...  We obtained resting state, diffusion tensor and anatomical imaging data in 35 patients with temporal lobe epilepsy and 20 healthy subjects on a 3 T scanner.  ...  Acknowledgements The authors would like to express gratitude to the patients who participated in this study, and are grateful to N. Filippini and G. Douaud for helpful discussions.  ... 
doi:10.1093/brain/aws137 pmid:22669081 fatcat:56r532pb4bfbfmmoxqfyq5agqu

Beyond BOLD correlations: A more quantitative approach for investigating brain networks

Richard B Buxton
2015 Journal of Cerebral Blood Flow and Metabolism  
the significance of these patterns for brain function is still poorly understood, a number of studies have found evidence that resting state connectivity is predictive of task performance. 1,4,5 Intriguingly  ...  As ASL methods continue to improve, they are likely to become an essential tool for understanding the role of resting state networks in both healthy and impaired brain function.  ...  the significance of these patterns for brain function is still poorly understood, a number of studies have found evidence that resting state connectivity is predictive of task performance. 1, 4, 5 Intriguingly  ... 
doi:10.1177/0271678x15615481 pmid:26661228 pmcid:PMC4794101 fatcat:3yhnbuuyf5aq5khjo55b5neyrq

Effects of anesthesia on resting state BOLD signals in white matter of non-human primates

Tung-Lin Wu, Feng Wang, Adam W. Anderson, Li Min Chen, Zhaohua Ding, John C. Gore
2016 Magnetic Resonance Imaging  
Resting state functional magnetic resonance imaging (rsfMRI) has been widely used to measure functional connectivity between cortical regions of the brain.  ...  We have previously shown that nearest neighbor inter-voxel correlations of resting state BOLD signal fluctuations in white matter are anisotropic and can be represented by a functional correlation tensor  ...  Fuxue Xin of the Vanderbilt University Institute of Imaging Science for their assistance in animal preparation and care during MRI data collection.  ... 
doi:10.1016/j.mri.2016.07.001 pmid:27451405 pmcid:PMC5055423 fatcat:fdhsi6eu4ffu7bwyb74zijwfeq

Biophysical and neural basis of resting state functional connectivity: Evidence from non-human primates

Li Min Chen, Pai-Feng Yang, Feng Wang, Arabinda Mishra, Zhaoyue Shi, Ruiqi Wu, Tung-Lin Wu, George H. Wilson, Zhaohua Ding, John C. Gore
2017 Magnetic Resonance Imaging  
However, there has been relatively little work reported that validates whether inter-regional correlations in resting state fluctuations of MRI (rsfMRI) signals actually measure functional connectivity  ...  of images in a resting state.  ...  Resting state correlations in MRI signals are interpreted as measures of functional connectivity, yet there have been very few substantive studies that validate this interpretation.  ... 
doi:10.1016/j.mri.2017.01.020 pmid:28161319 pmcid:PMC5410395 fatcat:rzctiaqgt5dybijnkkd4uo2psu

Caffeine alters resting-state functional connectivity measured by blood oxygenation level-dependent MRI

Wen-Chau Wu, Shu-Hua Lien, Jia-Horng Chang, Shun-Chung Yang
2014 NMR in Biomedicine  
Caffeine consumption should thus be considered in the experimental design and data interpretation of functional connectivity studies using resting-state BOLD MRI.  ...  This study aimed to investigate the pharmacological effect of caffeine on functional connectivity measured by resting-state blood oxygenation level-dependent (BOLD) MRI in the motor cortex, visual cortex  ...  measured by the resting-state BOLD MRI is neural [i.e.  ... 
doi:10.1002/nbm.3080 pmid:24478235 pmcid:PMC4260672 fatcat:wge2yhju4jakvoffxhxr3hface

Modern Methods for Interrogating the Human Connectome

Mark J. Lowe, Ken E. Sakaie, Erik B. Beall, Vince D. Calhoun, David A. Bridwell, Mikail Rubinov, Stephen M. Rao
2016 Journal of the International Neuropsychological Society  
techniques used to measure functional and structural connectivity, including resting state functional MRI, diffusion MRI, and electroencephalography and magnetoencephalography coherence.  ...  Modern neuroimaging techniques have expanded the scientific interest in the study of brain connectivity to include the intact as well as disordered brain.Methods:In this review, we describe the most common  ...  The purpose of the current paper is to introduce the reader to the modern imaging techniques used to measure functional and structural connectivity, including resting state functional MRI (rs-fMRI), diffusion  ... 
doi:10.1017/s1355617716000060 pmid:26888611 pmcid:PMC4827018 fatcat:kx3kjuue5retbjr3klnnj6ziq4

Functional Connectivity during Modulation of Tinnitus with Orofacial Maneuvers

Megan H. Lee, Nancy Solowski, Andre Wineland, Oluwafunmilola Okuyemi, Joyce Nicklaus, Dorina Kallogjeri, Jay F. Piccirillo, Harold Burton
2012 Otolaryngology and head and neck surgery  
To determine changes in cortical neural networks as defined by resting-state functional connectivity magnetic resonance imaging during voluntary modulation of tinnitus with orofacial maneuvers.  ...  and time courses in each of the remaining brain voxels.  ...  Functional connectivity MRI offers an advantage over task-based functional MRI in being unaffected by participant heterogeneity in taskperformance ability that may result from genomic, environmental, or  ... 
doi:10.1177/0194599812450680 pmid:22675003 pmcid:PMC4095801 fatcat:4ne3j6g2qrbxxpwlqlp4nwettq

Resting state functional connectivity of the whole head with near-infrared spectroscopy

Rickson C. Mesquita, Maria A. Franceschini, David A. Boas
2010 Biomedical Optics Express  
Resting state connectivity aims to identify spontaneous cerebral hemodynamic fluctuations that reflect neuronal activity at rest.  ...  In this study, we investigated the spatial-temporal correlation of hemoglobin concentration signals over the whole head during the resting state.  ...  These results show inter-region cortical connections in the brain during the resting state.  ... 
doi:10.1364/boe.1.000324 pmid:21258470 pmcid:PMC3005169 fatcat:znhaayp7hfekrk25ibtxxkxatm

Studying Brain Organization via Spontaneous fMRI Signal

Jonathan D. Power, Bradley L. Schlaggar, Steven E. Petersen
2014 Neuron  
along axons) or resting-state functional connectivity.  ...  On the Meaning of Resting-State BOLD Signal Similarity The reader has seen some of the findings that stimulated interest in functional connectivity MRI and the basics of resting-state data sets and analysis  ... 
doi:10.1016/j.neuron.2014.09.007 pmid:25459408 pmcid:PMC4254503 fatcat:7r5lawtxnfa7dndbj6l25oginq
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