Hello, may somebody suggest a good reference for the implementation of orthogonality among contrasts of SPM99 ? Thanks and regards Federico E. Turkheimer ------------------------------------------------------------------- ____/ / / Federico E. Turkheimer Ph.D / / / PET Methodology Group / / / MRC Cyclotron Unit / / / Imperial College School of Medicine /____ /___ / Hammersmith Hospital ______/ _______/ DuCane Road London, W12 OHS tel: 0208-383-3451 fax: 0208-383-2029 email: [log in to unmask] WWW: http://cu.rpms.ac.uk/~fet/ ------------------------------------------------------------------- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%