cd glmdir/contrast
(could be sig.nii or sig.nii.gz)
matlab
sig = MRIread('sig.mgh');
p = (10.^-abs(sig.vol))/2;
z = sig;
z.vol = sign(sig.vol).*fast_p2z(p);
MRIwrite(z,'z.mgh')
On 03/25/2015 10:26 AM, Barbour, Tracy,M.D. wrote:
>
> Hello,
>
> I am doing a functional connectivity analysis. I want to make
> individual pearson correlation maps for each subject (correlation
> between the seed region and all other voxels in the brain) and then
> convert them to a map of z-scores using a Fisher's z transformation. I
> want to then get an averaged group z map.
>
> I know there is an -m z option for isxconcat. From where are the z
> values calculated from (Are the z values calculated from the ces map
> or the pcc map)? How do I get the group z map?
>
> Thank you in advance
>
> Tracy
>
>
>
>
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