Watching the brain in action As this person looks at a photo, the fMRI (functional MRI) scan shows increased activity (color represents more bloodflow) in the visual cortex in the occipital lobes. When the person stops looking, the region instantly calms down.
Courtesy of V. P. Clark, K. Keill, J. Ma. Maisog, S. Courtney, L. G. Ungerleider, and J. V. Haxby, National Institute of Mental Health