[Freesurfer] Different results in surface and volume analyses

Hello everyone, I am looking at a visual stimulus vs fixation contrast in my individual subjects' data to make sure we are seeing normal activation there. If I look at the surface data in tksurfer, I see activation in the occipital cortex, but in the mni305 analysis, there is no activation in t

Re: [Freesurfer] Different results in surface and volume analyses

Hi Emily, the processing stream is designed to mask out cortical regions from the volume analysis. The volume analysis is used for subcortical structures. To make sure that the same voxels are not analyzed twice, the cortical surface is masked out of the mni305 analysis. doug ps. If you really

Re: [Freesurfer] Different results in surface and volume analyses

! Emily Message: 41 Date: Wed, 07 Aug 2013 19:29:33 -0400 From: Douglas N Greve Subject: Re: [Freesurfer] Different results in surface and volume analyses To: freesurfer@nmr.mgh.harvard.edu Message-ID: <5202d85d.1090...@nmr.mgh.harvard.edu> Content-Type: text/plain; charset=ISO-

Re: [Freesurfer] Different results in surface and volume analyses

Date: Wed, 07 Aug 2013 19:29:33 -0400 > From: Douglas N Greve <mailto:gr...@nmr.mgh.harvard.edu>> > Subject: Re: [Freesurfer] Different results in surface and volume > analyses > To: freesurfer@nmr.mgh.harvard.edu <mailto:freesurfer@nmr.mgh.harvard.edu> >