Hi Matt, It only matters insofar as the consequences of finer/coarser resolution. Caret will do the right thing. It is routine practice to map cubic 3mm functional volumes, for example. The coarser the resolution, the greater the difference between enclosing voxel and interpolated voxel mapping algorithms:
http://brainvis.wustl.edu/wiki/index.php/Caret:Operations/MapVolumeToSurface#Mapping_Algorithm_Page The SPM5 and FLIRT surfaces received different transformations (nonlinear and linear, respectively). For details, see: http://brainvis.wustl.edu/help/pals_volume_normalization/ You might also have a look at this paper: Van Essen, D.C. and Dierker, D. (2007) On navigating the human cortex. NeuroImage 37: 1050-1054. http://brainvis.wustl.edu/resources/VEaD_NI07.pdf Donna On 07/08/2011 04:31 PM, R. Matthew Hutchison wrote: > Hi > Hopefully this is a simple question. > I am using FSL for processing. > When mapping results to the PALS brain for display in CARET, I see the > option to specify FLIRT space during the atlas surface selection step. > Does it matter if the data are in the 1x1x1 or the 2x2x2 MNI152 space? > > Also, what is the difference between the SPM5 and FLIRT MNI space? > > Thanks for any help, > Matt > > > _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
