Negative BOLD fMRI response in the visual cortex carries precise stimulus-specific information
D Bressler, N Spotswood, D Whitney - PLoS One, 2007 - journals.plos.org
Sustained positive BOLD (blood oxygen level-dependent) activity is employed extensively in
functional magnetic resonance imaging (fMRI) studies as evidence for task or stimulus …
functional magnetic resonance imaging (fMRI) studies as evidence for task or stimulus …
Sustained negative BOLD, blood flow and oxygen consumption response and its coupling to the positive response in the human brain
Most fMRI studies are based on the detection of a positive BOLD response (PBR). Here, we
demonstrate and characterize a robust sustained negative BOLD response (NBR) in the …
demonstrate and characterize a robust sustained negative BOLD response (NBR) in the …
Early suppressive mechanisms and the negative blood oxygenation level-dependent response in human visual cortex
AR Wade, J Rowland - Journal of Neuroscience, 2010 - Soc Neuroscience
Functional magnetic resonance imaging (fMRI) studies of early sensory cortex often
measure stimulus-driven increases in the blood oxygenation level-dependent (BOLD) …
measure stimulus-driven increases in the blood oxygenation level-dependent (BOLD) …
A BOLD search for baseline
RG Shulman, DL Rothman, F Hyder - Neuroimage, 2007 - Elsevier
While we occasionally observe negative BOLD signals, its physiological basis has remained
uncertain. This is in part due to the qualitative use of fMRI where the baseline is conveniently …
uncertain. This is in part due to the qualitative use of fMRI where the baseline is conveniently …
Origin of negative blood oxygenation level—dependent fMRI signals
Functional magnetic resonance imaging (fMRI) techniques are based on the assumption
that changes in spike activity are accompanied by modulation in the blood oxygenation level …
that changes in spike activity are accompanied by modulation in the blood oxygenation level …
Metabolite concentration changes associated with positive and negative BOLD responses in the human visual cortex: A functional MRS study at 7 Tesla
Negative blood oxygenation–level dependent (BOLD) signal observed during task
execution in functional magnetic resonance imaging (fMRI) can be caused by different …
execution in functional magnetic resonance imaging (fMRI) can be caused by different …
Behavioral correlates of negative BOLD signal changes in the primary somatosensory cortex
A Kastrup, J Baudewig, S Schnaudigel, R Huonker… - Neuroimage, 2008 - Elsevier
Functional magnetic resonance imaging (fMRI) hypothesis testing based on the blood
oxygenation level dependent (BOLD) contrast mechanism typically involves a search for a …
oxygenation level dependent (BOLD) contrast mechanism typically involves a search for a …
Analysis of oxygen metabolism implies a neural origin for the negative BOLD response in human visual cortex
BN Pasley, BA Inglis, RD Freeman - Neuroimage, 2007 - Elsevier
The sustained negative blood oxygenation level-dependent (BOLD) response in functional
MRI is observed universally, but its interpretation is controversial. The origin of the negative …
MRI is observed universally, but its interpretation is controversial. The origin of the negative …
Negative BOLD-fMRI signals in large cerebral veins
M Bianciardi, M Fukunaga… - Journal of Cerebral …, 2011 - journals.sagepub.com
Reductions in blood oxygenation level dependent (BOLD)-functional magnetic resonance
imaging (fMRI) signals below baseline levels have been observed under several conditions …
imaging (fMRI) signals below baseline levels have been observed under several conditions …
BOLD responses in human primary visual cortex are insensitive to substantial changes in neural activity
JB Swettenham, SD Muthukumaraswamy… - Frontiers in human …, 2013 - frontiersin.org
The relationship between blood oxygenation level dependent-functional magnetic
resonance imaging (BOLD-fMRI) and magnetoencephalography (MEG) metrics were …
resonance imaging (BOLD-fMRI) and magnetoencephalography (MEG) metrics were …