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Hi Randall, you are quite right that this is common desire. You might want to try the Volumes toolbox and the spm_orthviews plugins - there it is the fancy_render menu item. This one lets you not only render blobs on the brain surface, but also cut out parts and render sections with blobs on them. All this is linked at the SPM extensions page, downloads are available from http://sourceforge.net/projects/spmtools Feel free to ask any questions - preferably via the sourceforge tracker system - documentation other than the help texts is rather poor. Yours, Volkmar On Mon, 15 Aug 2005, Randall Benson wrote: > SPMers, > > I am trying in vain to use Medx and SPM to create surface renderings of 3 > different contrasts (phonetics, FM, object processing) displayed > simultaneously using 3 different colors. Contrasts and analyses were > created with SPM99 or SPM2 (either). Maybe there is an extension to SPM > that does it but don't know what it is. It seems like such a common need I > would not think I would have to look far for this. I know Analyze does it > but I don't have the program any more. In Medx it's easy to display slices > and orthogonals with multiple overlays but no easy way to turn this into a > rendering that I can see. > > Appreciate any help. > > Randy Benson, M.D. > > Wayne State University & Detroit Medical Center > > -- Volkmar Glauche - Department of Neurology [log in to unmask] Universitaetsklinikum Freiburg Phone 49(0)761-270-5331 Breisacher Str. 64 Fax 49(0)761-270-5416 79106 Freiburg