Dear list, I would like to use freeview to display my activations patterns. I source-localized MEG data in matlab using the freesurfer standard brain as a source space. I saved the source localization as a w-file, that is, as an overlay.
I used to display the overlay in tksurfer, but I cannot adjust the colorbar thresholds using my keyboard in tksurfer (probably due to new linux and freesurfer versions). I read in an older post about that problem and it was suggested that freeview might be a better option. Unfortunately, I cannot load my w-files in freeview (similar problems as in the post below). Since I only work in matlab up to the point when I would like to save my data for plotting with freesurfer (e.g., freeview), I do not know how else (if not as a w-file) I could save my activations to display them as an overlay. I do not have volume data, I only have a vector of activation values corresponding to the vertices. Is there a different way to save my data in matlab so that I can display them as an overlay onto a surface in freeview? I would be thankful for any input. Best, Bjorn Older post below: Re: [Freesurfer] Loading .w surface overlay in Freeview can you use vol2surf to generate a .mgz/.mgh file instead? We have deprecated the use of .w files On Thu, 13 Aug 2015, Ivan Alvarez wrote: > Dear all, > > I am wondering if there is a facility for loading .w overlay files in > Freeview? In the surface section of the GUI, the overlay tab is for > volumetric files (.mgz, .nii, etc.). In the command line, the overlay > option fails - for example: > > freeview -f /path/to/lh.inflated:overlay=/path/to/overlay.w > > returns this error message in the GUI: > > "Failed to load surface overlay. mri_read()" > > and this one in the command line: > > : couldn't determine type of file /path/to/overlay.w" > > The .w file in question was produced with mri_vol2surf. Any suggestions? > > ---------- Björn Herrmann Brain and Mind Institute The University of Western Ontario London, Ontario N6A 5B7 Canada email: herrman...@gmail.com web: www.bjoernherrmann.com _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
