Hi all,
I have done an analysis of thickness and a neuropsych variable as a covariate with mri glmfit.
I would now like to see the neuropsych slopes of different groups (patients vs. controls) for certain vertices in tksurfer.
After loading the sig.mgh overlay and the corresponding file descriptor file, I can only view at the intercepts (see picture). Is there a possibilty to show the slopes as well ?
Furthermore the picture only shows 12 groups, although I have actually 16 and I don't know why.
Many thanks, Stefan
what do you mean by "see the slopes"? Those lines have a slope (it just looks like it is close to 0). Not sure why you can't see all 16, might be a limit in the fsgd visualization.
Stefan Brauns wrote:
Hi all,
I have done an analysis of thickness and a neuropsych variable as a covariate with mri glmfit.
I would now like to see the neuropsych slopes of different groups (patients vs. controls) for certain vertices in tksurfer.
After loading the sig.mgh overlay and the corresponding file descriptor file, I can only view at the intercepts (see picture). Is there a possibilty to show the slopes as well ?
Furthermore the picture only shows 12 groups, although I have actually 16 and I don't know why.
Many thanks, Stefan
-- Stefan Brauns 15 Clark St Boston, MA, 02109
phone: (617) 398-0437
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Thank you for your fast response.
According to the vertex on the overlay map, there are differences in the slopes of "red" and "blue" groups, that are not close to 0. One can also see in the picture of the first mail, that the slopes of the red groups should be definitely positive and at least some of all the lines should cross each other.
I would expect a picture like the one i have attached in this mail, only with additional "blue" lines in an opposite direction or close to 0. in this picture, thereare also seperate lines for the mean thickness of the groups and the slopes.
Is it possible, that I have just to many groups and the fsgd visualization can't show it correct?
On Tue, Nov 17, 2009 at 6:33 PM, Douglas N Greve greve@nmr.mgh.harvard.eduwrote:
what do you mean by "see the slopes"? Those lines have a slope (it just looks like it is close to 0). Not sure why you can't see all 16, might be a limit in the fsgd visualization.
Stefan Brauns wrote:
Hi all,
I have done an analysis of thickness and a neuropsych variable as a covariate with mri glmfit.
I would now like to see the neuropsych slopes of different groups (patients vs. controls) for certain vertices in tksurfer.
After loading the sig.mgh overlay and the corresponding file descriptor file, I can only view at the intercepts (see picture). Is there a possibilty to show the slopes as well ?
Furthermore the picture only shows 12 groups, although I have actually 16 and I don't know why.
Many thanks, Stefan
-- Stefan Brauns 15 Clark St Boston, MA, 02109
phone: (617) 398-0437
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
-- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422
Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Hard to say. Can you send me the fsgd file?
Stefan Brauns wrote:
Thank you for your fast response.
According to the vertex on the overlay map, there are differences in the slopes of "red" and "blue" groups, that are not close to 0. One can also see in the picture of the first mail, that the slopes of the red groups should be definitely positive and at least some of all the lines should cross each other.
I would expect a picture like the one i have attached in this mail, only with additional "blue" lines in an opposite direction or close to 0. in this picture, thereare also seperate lines for the mean thickness of the groups and the slopes.
Is it possible, that I have just to many groups and the fsgd visualization can't show it correct?
On Tue, Nov 17, 2009 at 6:33 PM, Douglas N Greve <greve@nmr.mgh.harvard.edu mailto:greve@nmr.mgh.harvard.edu> wrote:
what do you mean by "see the slopes"? Those lines have a slope (it just looks like it is close to 0). Not sure why you can't see all 16, might be a limit in the fsgd visualization. Stefan Brauns wrote: Hi all, I have done an analysis of thickness and a neuropsych variable as a covariate with mri glmfit. I would now like to see the neuropsych slopes of different groups (patients vs. controls) for certain vertices in tksurfer. After loading the sig.mgh overlay and the corresponding file descriptor file, I can only view at the intercepts (see picture). Is there a possibilty to show the slopes as well ? Furthermore the picture only shows 12 groups, although I have actually 16 and I don't know why. Many thanks, Stefan -- Stefan Brauns 15 Clark St Boston, MA, 02109 phone: (617) 398-0437 ------------------------------------------------------------------------ _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu> Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting <http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html <http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html>-- Stefan Brauns 15 Clark St Boston, MA, 02109
phone: (617) 398-0437
freesurfer@nmr.mgh.harvard.edu
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Douglas N Greve -
Stefan Brauns