Hi all,

I'm trying to project and visualize my functional activation maps onto the cortical surface using AFNI and SUMA. The command is like:
$ afni -niml & suma -spec [spec file] -sv [aligned surface volume]

I then let SUMA talk to AFNI and then selected the bold data (i.e. bold.nii) as underlay and the activation map for VT cortex as overlay (i.e. condition1_VTcortex.nii) so that I could see functional values projected on the cortical surface in SUMA for this stimuli. My question is: if I wanted to compare two different activation maps, is it possible to set these two activation maps as overlay (i.e. condition1_VTcortex.nii & condition2_VTcortex.nii) at the same time and visualize them in a same SUMA window together?

Any help would be greatly appreciated!

Best,
Xixi