Hi,

I am using an old version of Freesurfer where retinotopy-analysis is enabled. If anyone having such experience, please help me.

I am having trouble with csurf, and here is what I did. (1) changed Analyze file (*.hdr, *.img) into *.BRIK and *.HEAD using to3d (2) in csurf, under "session tools", I did "setup align/func scan" and it opens a window where I do "align scan dir" and it only accepts AFNI's *.BRIK and *.HEAD file. (that's why I did the conversion above). When I choose "align=>subj" to do the tkregister registration, it gives me the following error window.

AFNI BRIK byte order (determined "only" from BYTEORDER_STRING parameter in this HEAD file): /............/bob+orig.HEAD is INTEL (LSB first) not SUN/SGI/MAC (MSB first)

Change to MSB first?

This error message was followed by either "cancel" or "force BRIK to MSB, Fix HEAD", but neither option worked, meaning the image shown on "tkregister" was all gobbled. The "subj" image is OK, but the "align" image is screwed.

Could anyone give me a hint on where I should go from here? Thanks.

Nam.