The eyes may be the window to the soul, but neuroimages — from DTI to fMRI — can tell us a lot about the brain.

BrainLine has an fascinating guide through the different types of neuroimaging, with images and explanations were provided by Deborah M. Little, PhD, associate professor of Neurology, The University of Illinois College of Medicine. 

See the images, description and video interviews with Dr. Little: http://www.brainline.org/content/2011/04/neuroimages.html