[Freesurfer] Individual / fsaverage RAS152 discrepancies

2016-11-16 Thread Garikoitz Lerma-Usabiaga
Hi all, I have fMRI data in individual space, converted to individual surface using vol2surf and to fsaverage surface using surf2surf (commands [1] and [2] below). With Matlab, I obtain the vertex with the maximum value: max_Vtx and max_Vtx305. If I would like to obtain the MNI152 coordinate of thi

Re: [Freesurfer] Individual / fsaverage RAS152 discrepancies

2016-11-18 Thread Douglas N Greve
Hi Gari, those look correct (make sure that your indices are not off by 1 (ie, FS uses 0-based indexing, and matlab uses 1-based). I would not expect them to be the same since #1 includes a non-linear transform, and they are only off by about 1.5cm (not bad by affine standards). Not sure that o

Re: [Freesurfer] Individual / fsaverage RAS152 discrepancies

2016-11-18 Thread Garikoitz Lerma-Usabiaga
Thanks Doug, this answers the question. I will use the fsaverage data for between subject comparison and literature comparison then. Thanks! Gari PS: yes, the +1 and the xy flipping thing are a real pita :) On Fri, Nov 18, 2016 at 5:54 PM Douglas N Greve wrote: > Hi Gari, those look correct (mak