Functional magnetic resonance imaging (fMRI) studies of early sensory cortex often
measure stimulus-driven increases in the blood oxygenation level-dependent (BOLD) …

Sustained positive BOLD (blood oxygen level-dependent) activity is employed extensively in
functional magnetic resonance imaging (fMRI) studies as evidence for task or stimulus …

Magnetic resonance imaging (MRI) of neuronal “activation” relies on the elevation of blood
flow and oxygenation and a related increase of the blood oxygenation level-dependent …

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 …

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 …

The six cortical layers have distinct anatomical and physiological properties, like different
energy use and different feedforward and feedback connectivity. It is not known if and how …

The relationship between blood oxygenation level dependent-functional magnetic
resonance imaging (BOLD-fMRI) and magnetoencephalography (MEG) metrics were …

Neuroimaging studies of functional magnetic resonance imaging (fMRI) and
electrophysiology provide the linkage between neural activity and the blood oxygenation …

The blood oxygenation level-dependent (BOLD) fMRI response to neuronal activation
results from a complex interplay of induced metabolic and vascular changes. Thus, its …

Most functional brain imaging studies use task-induced hemodynamic responses to infer
underlying changes in neuronal activity. In addition to increases in cerebral blood flow and …