In the brain, increases in neural activity drive changes in local blood flow via neurovascular
coupling. The common explanation for increased blood flow (known as functional …

Summary Ultra-slow,∼ 0.1-Hz variations in the oxygenation level of brain blood are widely
used as an fMRI-based surrogate of" resting-state" neuronal activity. The temporal …

To understand how arousal state impacts cerebral hemodynamics and neurovascular
coupling, we monitored neural activity, behavior, and hemodynamic signals in un …

The hemodynamic response function (HRF) greatly influences the intra-and inter-subject
variability of brain activation and connectivity, and might confound the estimation of temporal …

Cortical neural activity is coupled to local arterial diameter and blood flow. However, which
neurons control the dynamics of cerebral arteries is not well understood. We dissected the …

Fluctuations in blood oxygenation and flow are widely used to infer brain activity during
resting-state functional magnetic resonance imaging (fMRI). However, there are strong …

Arousal state affects neural activity and vascular dynamics in the cortex, with sleep
associated with large changes in the local field potential and increases in cortical blood flow …

Microcirculation facilitates the blood‐tissue exchange of nutrients and regulates blood
perfusion. It is, therefore, essential in maintaining tissue health. Aberrations in …

During locomotion, theta and gamma rhythms are essential to ensure timely communication
between brain structures. However, their metabolic cost and contribution to neuroimaging …

The concentration of oxygen in the brain spontaneously fluctuates, and the distribution of
power in these fluctuations has a 1/f-like spectra, where the power present at low …