Hi - you could flirt your dti images to standard space and apply that transformation to V1 using vecreg. cingulum will be green though. add a 90deg rotation if you want is in blue.. Saad On 1 Jun 2012, at 15:35, Rodrigo Perea wrote: > Thanks for your response but imagine that I want to see superior-inferior blue color of the cingulum but if the cingulum is diagonal to the superior-inferior axis, then the color will be between green and blue. Is there any way I can make the cingulum straight blue? I hope this make sense... > -- Saad Jbabdi University of Oxford, FMRIB Centre JR Hospital, Headington, OX3 9DU, UK (+44)1865-222466 (fax 717) www.fmrib.ox.ac.uk/~saad