fMRI

Functional Magnetic Resonance Imaging (fMRI) is a new use of existing MRI technology. Functional magnetic resonance imaging (fMRI) is used to visualize brain function, by visualizing changes in chemical composition of brain areas or changes in the flow of fluids that occur over timespans of seconds to minutes. In the brain, blood oxygen level is related to neural activity, so fMRI can be used to find out what the brain is doing when subjects perform specific tasks or are exposed to specific stimuli.