40% of MRI signals do not correspond to actual brain activity, study suggests

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

Over 40% of Functional MRI Signals Don't Correspond to Brain Activity

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

fMRI Signals Often Misread Neural Activity

MRI signals don’t always match the brain’s true activity levels, overturning a core assumption used in tens of thousands of studies.
Medindia

Smarter Scans Map True Brain Energy for Better Diagnosis

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

40 percent of MRI signals do not correspond to actual brain activity

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