[Freesurfer] surface-based analysis in FsFast

Hi all! Will surface-based fMRI analysis in FsFast show activation in subcortical & MTL structures (caudate, putamen, thalamus, hippo/amygdala) or is it limited to the neocortical surface?  If not, is there a way to get such statistics without resorting to a volume analysis? Thanks! David

Re: [Freesurfer] surface-based analysis in FsFast

Hi David, not realiably, no. You'll need to analyze those in the volume (since they are volumetric structures) Bruce On Mon, 3 Jul 2006, David Ziegler wrote: Hi all! Will surface-based fMRI analysis in FsFast show activation in subcortical & MTL structures (caudate, putamen, thalamus, hipp

Re: [Freesurfer] surface-based analysis in FsFast

Just to clarify, fs-fast does functional analysis in the volume, then samples the results to the surface for surface-based analysis, so you can analyze subcortical structures. You can also do roi based analysis, using either subcortical or cortical based rois. doug On Mon, 3 Jul 2006, Bruce F

Re: [Freesurfer] registration problems

Does 'top' (the process monitor utility) indicate that mri_ca_register is continuing to run? If so, then likely there is not a problem. This portion of recon-all can take quite a long time (about 10 hours), so you should let it run overnight. > Dear freesurfers, > > I got some problems running

Re: [Freesurfer] File Conversion Inquiry

hi gregory, to address your last question: no, tksurfer does not require both eccentricity and polar angle data to display either coordinate map by itself. as bruce wrote, the convention is that the eccentricity and polar angle data are each stored in two separate overlay or ".w" files. the ".w"