PREVIOUSLY WRITTEN:
I'm writing with a question regarding the tranformation from volumetric to surface brains (AFNI-SUMA). Since we want to get MNI (or tlrc) coordinates for our ROIs we are looking up the max node in SUMA and by linking this viewer to the AFNI viewer we are using the 'where am i?' feature to obtain the coordinates for that node.

UNFORTUNATELY there is a consistant problem in doing this around the inferior frontal and temporal lobe areas. For example, locating the temporal pole in SUMA will usually make the alignment in AFNI to be somewhere near mid/inferior frontal. Not close at all, and this seems to happen for random nodes.

NEW:
So when i made your file to send I decided to try one last time to check out the situation. AND lo and behold, the problem doesn't happen (of course, right?). SSSOOO I don't know what the problem was before, but all I did was create a seperate folder with the basic files...

the commands were simply:
afni -niml &
suma -spec AM-04V_rh_std.spec -sv AM-04VSUMA_SurfVol_Alnd_Exp+orig

same as I have always used, but only the suma surfaces, and afni surfaces were present when i ran it this time. -?-

so i would assume this is ok to use for getting coordinates. Which leaves me with the following questions:

Since this works, would it be ok to use this to get the coordinates we need (using previously extracted node numbers from SurfClust)?

What are the coordinates SUMA displays under crosshair info? (which coordinate system and orientation -R, A, I)

Using the link btwn AFNI and SUMA viewers, it would appear that the coordinates are not similar (for either tlrc or MNI) in the 'where am i' feature in AFNI compared to the Xhr display in SUMA.....what does this mean and which should be used?

-j9