Re: [Freesurfer] warped flat occip patches and fieldsign maps

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