World English Dictionary
abbreviation for
functional magnetic resonance imaging: a technique that directly measures the blood flow in the brain, thereby providing information on brain activity

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Cultural Dictionary

FMRI definition

Abbreviation for functional magnetic resonance imaging. In FMRI, a patient is placed in a high magnetic field and delicate measurements of magnetic fields associated with processes like blood flow are made. In this way, the functioning of organs like the brain can be monitored as they occur. (Compare MRI.)

Note: FMRI images are used to determined which parts of the brain “light up” when a function such as speech or recognition is performed.
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