...@nmr.mgh.harvard.edu]
Sent: Friday, March 27, 2015 12:28 PM
To: freesurfer@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] functional connectivity maps (correlation and z maps)
I think that the ces is the better map to use, but there's not a
consensus. For some reason that I don't understand, people starting
]
Sent: Wednesday, March 25, 2015 3:37 PM
To: freesurfer@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] functional connectivity maps (correlation and z
maps)
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
]
Sent: Friday, March 27, 2015 3:15 PM
To: freesurfer@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] functional connectivity maps (correlation and z maps)
The statistic maps (z, t, correlation coefficient) depend on the noise
of the individual analysis, ie, two subjects could have identical
correlation
@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] functional connectivity maps (correlation and z
maps)
I think that the ces is the better map to use, but there's not a
consensus. For some reason that I don't understand, people starting
using the z-map or the correlation coefficient as the input
-boun...@nmr.mgh.harvard.edu] on behalf of Douglas N Greve
[gr...@nmr.mgh.harvard.edu]
Sent: Wednesday, March 25, 2015 3:37 PM
To: freesurfer@nmr.mgh.harvard.edu
Subject: Re: [Freesurfer] functional connectivity maps (correlation and z maps)
cd glmdir/contrast
(could be sig.nii or sig.nii.gz
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
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
