Hi all, I've got some VBM results that were generated using FSL 4.0 and have not been recreated using the the most recent FSL release. I've been looking for the exact description of the method used in 4.0 but cannot find it on the website. Would anyone have it to hand? Also, what do the GM_mod_merg files contain? Is it best interpreted as concentration of grey matter within each voxel? Or something else? Thanks, -- Dr Colm G. Connolly School of Psychology and Institute of Neuroscience The Lloyd Building University of Dublin Trinity College, Dublin 2, Éire Fax: +353-1-671-3183 Please note that electronic mail to, from or within the Trinity College Dublin, may be the subject of a request under the Freedom of Information Act.