Functional MRI (fMRI) is widely assumed to measure neuronal activity, but no satisfactory
mechanism for this linkage has been identified. Here we derived the changes in the …

In α-chloralose-anesthetized rats, changes in the blood oxygenation level-dependent
(BOLD) functional MRI (fMRI) signal (ΔS/S), and the relative spiking frequency of a neuronal …

Introduction 2883. Relationship between neuroenergetics and neurotransmitter flux 2944. A
model of coupling between neuroenergetics and neurotransmission 2965. Relationship …

Energetics of resting and evoked fMRI signals were related to localized ensemble firing
rates (ν) measured by electrophysiology in rats. Two different unstimulated, or baseline …

The complex activities of the brain need not distract us from the certainty that it uses energy
and performs work very efficiently. The human brain, which claims∼ 2% of our body mass, is …

Abstract Although BOLD functional MRI (fMRI) provides a useful tool for probing neuronal
activities, large intersubject variations in signal amplitude are commonly observed …

The haemodynamic responses to neural activity that underlie the blood-oxygen-level-
dependent (BOLD) signal used in functional magnetic resonance imaging (fMRI) of the brain …

Functional MRI (fMRI) has uncovered widespread hemodynamic fluctuations in the brain
during rest. Recent electroencephalographic work in humans and microelectrode recordings …

In recent years, cognitive neuroscientists have taken great advantage of functional magnetic
resonance imaging (fMRI) as a non-invasive method of measuring neuronal activity in the …

After its discovery in 1990, blood oxygenation level-dependent (BOLD) contrast in functional
magnetic resonance imaging (fMRI) has been widely used to map brain activation in …