Cerebral blood flow (CBF) and oxygen metabolism underpin the fundamental processes that sustain neural function and viability. The delivery of oxygen via the bloodstream is essential for maintaining ...

Winter's chill triggers dangerous physiological changes, increasing stroke risk. Cold constricts blood vessels, raising blood ...

Replacing a missing brain lipid may calm overactive blood vessels and restore healthy blood flow—opening a new path toward treating dementia.

40% of functional magnetic resonance imaging reflect misleading blood flow and brain energy use, proposing improved diagnosis can be achieved from new methods.

Scientists have identified a new mechanism that may underlie cerebral circulatory disorders in vascular dementia and Alzheimer's disease. We are talking about a deficiency of phospholipid PIP2, a ...

Contradiction to the prevailing paradigm in neuroimaging  - No general relationship between oxygen content and neuronal activity - Conventional MRI method should be complemented by quantitative ...

A new study in mice describes how the brain rapidly and efficiently increases blood flow to active areas where oxygen and nutrients are needed most. The work shows that the brain relies on a ...

Fainting at the sight of blood is a common physical response caused by temporary drops in blood flow to the brain, not fear. Known as vasovagal syncope, it occurs when the nervous system overreacts to ...

Risk assessment Researchers from Caltech and the Keck School of Medicine at USC have created a portable laser-based headset that can estimate stroke risk. Caltech postdoctoral scholar Simon Mahler is ...

Research from Frontiers in Neurology examined adults still experiencing cognitive difficulties from childhood brain injuries. Following 40 sessions of hyperbaric oxygen therapy, patients showed ...

A new study fundamentally challenges how fMRI data are interpreted, finding no valid coupling between oxygen content measured ...

For almost three decades, functional magnetic resonance imaging (fMRI) has been one of the main tools in brain research. Yet ...