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fMRI of the brain listening to sounds (blue) and seeing pictures (orange)
fMRI of the brain listening to sounds (blue) and seeing pictures (orange)

Functional magnetic resonance imaging, or FMRI, is a technique for measuring brain activity. It works by detecting the changes in blood oxygenation and flow that occur in response to neural activity – when a brain area is more active it consumes more oxygen and to meet this increased demand blood flow increases to the active area. FMRI can be used to produce activation maps showing which parts of the brain are involved in a particular mental process.

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What is fMRI?

How is fMRI used?

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