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[image: Screenshot 2023-11-22 at 1.32.53 PM.png] doesn't allow me to adjust the threshold to negative values, for example t-values between -3 and 3.
On Wed, Nov 22, 2023 at 1:26 PM Douglas N. Greve dgreve@mgh.harvard.edu wrote:
Have you tried adjusting the threshold. Open the configure overlay option. Also, sending a pic would be helpful (and the contents of tk.dat)
On 11/22/2023 11:29 AM, Atena Akbari wrote:
External Email - Use CautionDear freesurfer team,
I want to overlay the activation map that I got from SPM on the inflated surface. The command I use is:
"mri_vol2surf --mov spmT_funcmap.nii --ref subj01/mri/orig.mgz. --reg tk.dat --hemi rh --o flodername"
in which, I got the registration file (tk.dat) by aligning my functional mean image to the orig.mgz in tkregisterfv.
now the problem is when I overlay the activation map on the inflated surface, I can only see the voxels with positive t-values. I can't see the negative ones. I cannot change the threshold values provided by "configure overlay" to negative values. Also, changing the "z-score" option next to the overlay configuration doesn't make any difference. can you help me with this, please?
Thanks a lot,
Atena
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