Those thresholds apply to both pos and neg. Eg, what you have there will
show values between +0.1 and +250 AND between -0.1 and -250. It appears
that you don't have any negative values in that map
On 11/22/2023 1:34 PM, Atena Akbari wrote:
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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
<dgr...@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:
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Dear 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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