[HTML][HTML] Methods for cleaning the BOLD fMRI signal

C Caballero-Gaudes, RC Reynolds - Neuroimage, 2017 - Elsevier
Blood oxygen-level-dependent functional magnetic resonance imaging (BOLD fMRI) has
rapidly become a popular technique for the investigation of brain function in healthy …

Evaluating fMRI preprocessing pipelines

SC Strother - IEEE Engineering in Medicine and Biology …, 2006 - ieeexplore.ieee.org
This article reviews the evaluation and optimization of the preprocessing steps for blood-
oxygenation-level-dependent (BOLD) functional magnetic resonance imaging (fMRI). This …

The global signal in fMRI: Nuisance or Information?

TT Liu, A Nalci, M Falahpour - Neuroimage, 2017 - Elsevier
The global signal is widely used as a regressor or normalization factor for removing the
effects of global variations in the analysis of functional magnetic resonance imaging (fMRI) …

The global signal and observed anticorrelated resting state brain networks

MD Fox, D Zhang, AZ Snyder… - Journal of …, 2009 - journals.physiology.org
Resting state studies of spontaneous fluctuations in the functional MRI (fMRI) blood oxygen
level dependent (BOLD) signal have shown great promise in mapping the brain's intrinsic …

The impact of global signal regression on resting state correlations: are anti-correlated networks introduced?

K Murphy, RM Birn, DA Handwerker, TB Jones… - Neuroimage, 2009 - Elsevier
Low-frequency fluctuations in fMRI signal have been used to map several consistent resting
state networks in the brain. Using the posterior cingulate cortex as a seed region, functional …

Functional connectivity of default mode network components: correlation, anticorrelation, and causality

LQ Uddin, AM Clare Kelly, BB Biswal… - Human brain …, 2009 - Wiley Online Library
The default mode network (DMN), based in ventromedial prefrontal cortex (vmPFC) and
posterior cingulate cortex (PCC), exhibits higher metabolic activity at rest than during …

Functional connectivity of human striatum: a resting state FMRI study

A Di Martino, A Scheres, DS Margulies… - Cerebral …, 2008 - academic.oup.com
Classically regarded as motor structures, the basal ganglia subserve a wide range of
functions, including motor, cognitive, motivational, and emotional processes. Consistent with …

Default-mode activity during a passive sensory task: uncoupled from deactivation but impacting activation

MD Greicius, V Menon - Journal of cognitive neuroscience, 2004 - direct.mit.edu
Deactivation refers to increased neural activity during low-demand tasks or rest compared
with high-demand tasks. Several groups have reported that a particular set of brain regions …

A method for removal of global effects from fMRI time series

PM Macey, KE Macey, R Kumar, RM Harper - Neuroimage, 2004 - Elsevier
We present a technique for removing global effects from functional magnetic resonance
imaging (fMRI) images, using a voxel-level linear model of the global signal (LMGS). The …

Infraslow LFP correlates to resting-state fMRI BOLD signals

WJ Pan, GJ Thompson, ME Magnuson, D Jaeger… - Neuroimage, 2013 - Elsevier
The slow fluctuations of the blood-oxygenation-level dependent (BOLD) signal in resting-
state fMRI are widely utilized as a surrogate marker of ongoing neural activity. Spontaneous …