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Thank you very much for your rapid response.
Best regards,
*-- --*
*Agurne Sampedro Calvete, PhD*
Departamento de Psicología / Psikologia Saila / Department of Psychology
Facultad de Ciencias de la Salud / Osasun Zientzien Fakultatea / Faculty
If you are looking for the difference in the correlation between the
groups then you have to use DODS and 0 0 1 -1. The way to understand it
is that you have four regression coefficients and each means something.
The way you have it set up in the fsgd file is that they are
1. group 1 intercept
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Dear FreeSurfer experts,
I have two groups and two time points and I would like to do a correlation
analysis between a variable (cognition) and the change score in cortical
thickness between the two time points (time2 minus time1).
I would like to see
Yes, though I might demean all the covariates. For thickness, you can run
mri_glmfit --surf fsaverage lh --y lh.thickness_20.fsavg.mgh --osgm
--eres-save --o thickness-demean
then use thickness-demean/eres.mgh as the PVR
On 2/20/2020 9:13 AM, Raffaele Dubbioso wrote:
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Dear FS team,
in my analysis I'd like to correlate two variables such as cortical
myelination and neurophysiological metrics, regressing-out thickness and
age of the subjects. I have only one group.
My FSGD file should be:
GroupDescriptorFile 1
Title
In this case, there is only one class and two continuous variables, so
there will be only 3 regressors, so your contrast matrix should only
have 3 items. try 0 0 1
On 4/17/19 5:17 PM, TMS lab wrote:
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>
> There you go.
> The contrast.mtx gives me the error
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There you go.
The contrast.mtx gives me the error
ERROR: dimension mismatch between X and contrast contrast.mtxX has 3
cols, C has 4 cols
Il giorno mer 17 apr 2019 alle ore 22:12 TMS lab ha
scritto:
>
> mri_glmfit --y lh.t1t2ratio_12CMT_fmed_3sm
can you send your fsgd file and your contrast.mtx file?
On 4/17/19 4:12 PM, TMS lab wrote:
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>
>
> mri_glmfit --y lh.t1t2ratio_12CMT_fmed_3sm_decurv.fsavg.mgh --fsgd
> age_dexterity.fsgd --surf fsaverage lh --C contrast.mtx --o
> lh_NHPT_T1T2_12CMT_allbrain
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mri_glmfit --y lh.t1t2ratio_12CMT_fmed_3sm_decurv.fsavg.mgh --fsgd
age_dexterity.fsgd --surf fsaverage lh --C contrast.mtx --o
lh_NHPT_T1T2_12CMT_allbrain
Il giorno gio 11 apr 2019 alle ore 21:58 Greve, Douglas N.,Ph.D. <
dgr...@mgh.harvard.edu> ha sc
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mri_glmfit --y lh.t1t2ratio_12CMT_fmed_3sm_decurv.fsavg.mgh --fsgd
age_dexterity.fsgd --surf fsaverage lh --C contrast.mtx --o
lh_NHPT_T1T2_12CMT_allbrain
Il giorno gio 11 apr 2019 alle ore 21:58 Greve, Douglas N.,Ph.D. <
dgr...@mgh.harvard.edu> ha sc
what is your command line?
On 4/11/19 3:53 PM, TMS lab wrote:
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>
> Unfortunately I get such error message with the matrix 0 0 0 1
> ERROR: dimension mismatch between X and contrast contrast.mtx X has
> 3 cols, C has 4 cols
>
> Instead if I use 0 0 1, it
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Unfortunately I get such error message with the matrix 0 0 0 1
ERROR: dimension mismatch between X and contrast contrast.mtx X has 3
cols, C has 4 cols
Instead if I use 0 0 1, it works
Best,
RAFAEL
That should have failed because it only has 3 v
That should have failed because it only has 3 values (should have 4). I
think it should be 0 0 0 1
On 4/11/19 3:20 AM, TMS lab wrote:
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>
> You are right. I want simply to correlate myelin and nhpt regressing
> out age.
> I did it with the following matrix
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You are right. I want simply to correlate myelin and nhpt regressing out
age.
I did it with the following matrix:
0 0 1
And it seems to work. Is it ok this matrix?
Thanks a lot
Rafael
Il giorno gio 11 apr 2019 alle 00:22 Greve, Douglas N.,Ph.D. <
dgr
That will compute the average of the Age slope and the NHPT slope.
Probably not what you want to do
On 4/6/19 12:24 PM, TMS lab wrote:
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>
> Dear Freesurfer team,
>
> I'm running a correlation analysis where I'd like to corelate
> myelination and a clinical
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Dear Freesurfer team,
I'm running a correlation analysis where I'd like to corelate myelination
and a clinical parameter (NHPT) regressing out the effect of age.
My contrast.mtx: 0 0 0.5 0.5
This is my FSGD FILE:
GroupDescriptorFile 1
Title Myelin
Cl
You have to use a per-vertex regressor (--pvr to mri_glmfit). Search
through the mail archives to find instructions
On 05/15/2018 03:53 PM, Raffaele Dubbioso wrote:
>
>
> Dear Freesurfer team,
>
> I'm working on correlation between fMRI data and a clinical score.
> Since such fMRI data correlat
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Dear Freesurfer team,
I'm working on correlation between fMRI data and a clinical score. Since
such fMRI data correlate also with cortical thickness, I'd like to regress
out this variable (cortical thickness).
How can I write my fsgd file and command
Hi list,
I have performed cortical thickness analysis and I have individuated a ROI.
Now, I'd like to perform a correlation analysis by qdec (if possible) between
cortical thickness in this ROI and neuropsychological test score.
I'm reading some previous post such as
http://www.mail-archive.com/f
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