The Flip method of LI calculation

Abstract

Illustration of the Flip method for measuring extent of lateralisation from fMRI (Baciu, Juphard, Cousin & Le Bas, 2005). By contrasting a right-side contrast image with a mirror image (the same image flipped so that the right hemisphere is on the left), a new contrast image is generated with significant voxels indicating regions in which left activity is statistically significantly greater than right homologue activity