The goal of resting-state functional magnetic resonance imaging (fMRI) is to investigate the
brain's functional connections by using the temporal similarity between blood oxygenation …

Functional magnetic resonance imaging (fMRI) measures the blood oxygen level-dependent
(BOLD) signal related to neuronal activity. So far, this technique has been limited by time …

Subtle changes in a subject's breathing rate or depth, which occur naturally during rest at
low frequencies (< 0.1 Hz), have been shown to be significantly correlated with fMRI signal …

Carbon dioxide is a potent cerebral vasodilator. We have identified a significant source of
low-frequency variation in blood oxygen level-dependent (BOLD) magnetic resonance …

Air hunger (uncomfortable urge to breathe) is a component of dyspnea (shortness of breath).
Three human H2 15O positron emission tomography (PET) studies have identified activation …

The effect of the basal cerebral blood flow (CBF) on both the magnitude and dynamics of the
functional hemodynamic response in humans has not been fully investigated. Thus, the …

This review seeks to clarify the most important implications of higher magnetic field strength
for clinical examinations of the whole body. An overview is provided on the resulting …

Anesthetics, widely used in magnetic resonance imaging (MRI) studies to avoid movement
artifacts, could have profound effects on cerebral blood flow (CBF) and cerebrovascular …

Functional magnetic resonance imaging (fMRI) was used to investigate the effects of
inspired hypoxic, hyperoxic, and hypercapnic gases on baseline and stimulus-evoked …

In resting state fMRI, it is necessary to remove signal variance associated with noise
sources, leaving cleaned fMRI time-series that more accurately reflect the underlying …