Hi Bruce,
I've uploaded a tar file called umali_fieldsign_swirl.

It contains two directories one anatomical and the other retinotopy both from the same subject 29:
ld29 which contains the recon-all output anatomical data
sj29 which contains all the retinotopy data.  the subjectfilename says ld29

The fieldsign map on the flattened patch has some out-of-plane swirls. 

Is it from incorrect cuts or something else?

Thanks.
Michelle


On Fri, Oct 7, 2011 at 8:32 AM, Bruce Fischl <fischl@nmr.mgh.harvard.edu> wrote:
Hi Michelle,

the  odd shaped shards and triangles usually means you recreated the surfaces after flattening, so the flattening needs to be redone. The swirls can be a number of things, possibly incorrect cuts. If you want to upload an example I'll take a look.

cheers
Bruce



On Thu, 6 Oct 2011, Michelle Umali wrote:

Dear freesurfers,
I've been analyzing my retinotopy , have finally been able to run
fieldsign-sess without running into dimension mismatch errors.

Everything seemed ok until I tried looking at the fieldsign maps on flat
patches.  Some patches are warped with odd out of plane swirls.  In others,
all i get are odd shaped shards and triangles.

What might be the cause?

thanks,
Michelle




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