Princeton's WordNet(0.00 / 0 votes)Rate this definition: functional magnetic resonance imaging, fMRI(noun). a form of magnetic resonance imaging of the brain that registers blood flow to functioning areas of the brain.
...definition of functional magnetic resonance imaging. n. Abbr. fMRI Magnetic resonance imaging that provides three-dimensional images of
functional-magnetic-resonance-imaging. Noun. (uncountable) (Abbreviated as: fMRI).
fMRI scan. uses magnetic resonance imaging (MRI) technology to detect changes in cerebral blood flow. When blood flow to a particular brain region is increased, it suggests brain activity in this area has increased.
Functional magnetic resonance imaging or functional MRI (fMRI) is a functional neuroimaging procedure using MRI technology that measures brain activity by detecting changes associated with blood flow.
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In fMRI it is the magnetic signal from hydrogen nuclei in water (H2O) that is detected.
Citation: Welvaert M, Rosseel Y (2013) On the Definition of Signal-To-Noise Ratio and Contrast-To-Noise Ratio for fMRI Data. PLoS ONE 8(11)
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