Hi all, If using flirt on animal brains it was in general suggested to rescale the data and fake a human sized brain. If I obtain a transformation matrix using this method, how di I nned to modify it to apply the transformation on the original data? For example I rescale EPI and HiRes Images with a factor of 3, perform flirt, which gives me a transformation matrix. Now I would like to apply this transformation matrix on an activation map, so what modification are required? Thank you for all the help! wolf