magnetic resonance images based upon tissue differences in spin-spin relaxation time (T2). In fact, it measures rate of spin phases in contrast to T1 that detects the half life of inverted spins Used in fMRI, with BOLD effects being measured using a T2 imaging process. T2 images have with moderately good spatial and temporal resolution, the scans are usually repeated every 2-5 seconds, with the voxels in the resulting image representing cubes of tissue approximately 2.5 mm on each side
. See Blood Oxygenation Level Dependent Contrast (BOLD signal), Brain (neuro-) imaging, Functional magnetic resonance imaging (fMRI)