when was fmri developed
The subject is facing to the right (the nose is in the lower right), and this slice is taken straight down the middle of the brain. Note the remarkable anatomical detail. Functional MRI, or fMRI, was developed in the early 1990s and is a variation of magnetic resonance imaging. It uses a conventional MRI scanner, but takes advantage of two additional phenomena. The first is that blood contains iron, which is the oxygen-carrying part of hemoglobin inside red blood cells.