Re: [Freesurfer] contrast matrix for one-way ANOVA with 1 factor, 4 groups

2017-02-21 Thread Gold, Andrea (NIH/NIMH) [F]
+Greve%22> Tue, 21 Feb 2017 12:53:08 -0800<http://www.mail-archive.com/search?l=freesurfer@nmr.mgh.harvard.edu=date:20170221> That four group test will yield the same exact result as 1 -1 0 0 1 0 -1 0 1 0 0 -1 so I think you are ok From: "Gold, Andrea (NIH/NIMH) [F]"

[Freesurfer] contrast matrix for one-way ANOVA with 1 factor, 4 groups

2017-02-21 Thread Gold, Andrea (NIH/NIMH) [F]
Hi, I am trying to run a cortical thickness analysis comparing four groups – my goal is to conduct an omnibus F-test testing for any group differences. I have 0 covariates/nuisance regressors. This would be equivalent to the “Contrast 4 group.effect.mtx” in this page, for 3 groups:

[Freesurfer] FW: Correcting for both hemispheres in thickness analysis using a PFC mask

2016-08-24 Thread Gold, Andrea (NIH/NIMH) [F]
Hi, I have a question about correcting for 2 hemispheres in a thickness analysis using a PFC mask. Here are the steps I ran: 1) I ran the analysis in qdec without a mask. 2) I found the mri_glmfit.log file from step 1 and cut out the mri_glmfit command that runs the analysis and replaced

[Freesurfer] Question re extracting average thickness values per subject based on cache.th13.abs.y.ocn.dat

2016-08-19 Thread Gold, Andrea (NIH/NIMH) [F]
Hi, I’m trying to extract the average thickness per subject in significant clusters from a Qdec analysis, and hope to clarify 2 things re: the “cache.th13.abs.y.ocn.dat“ output from this command: mri_glmfit-sim --glmdir (dir) --cache 1.3 abs --cwp 0.05 —2spaces I’ve attached all relevant

[Freesurfer] Viewing more than one label at once in Freeview?

2015-12-15 Thread Gold, Andrea (NIH/NIMH) [F]
Hi, I am trying to show 3 aparc labels on the inflated surface, each in a different color, let’s say lh.inferiortemporal, lh.middletemporal and lh.superiortemporal . I have 2 questions: First I ran mris_annotation2label to extract the individual region aparc labels. I can merge them into a

Re: [Freesurfer] error using mri_glmfit

2015-10-15 Thread Gold, Andrea (NIH/NIMH) [F]
response, I missed this email in the daily digest. Thanks, Andrea From: "Gold, Andrea (NIH/NIMH) [F]" <andrea.g...@nih.gov<mailto:andrea.g...@nih.gov>> Date: Monday, October 5, 2015 at 12:58 PM To: "freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.

[Freesurfer] error using mri_glmfit

2015-10-05 Thread Gold, Andrea (NIH/NIMH) [F]
Hi, I got the following error during my first time running the mri_glmfit command: mri_glmfit --y Model1_Maltx_ParentEd_Sex_Age_n58-lh-thickness.mgh --fsgd Model1_Maltx_ParentEd_Sex_Age_n58.fsgd --C Model1_Maltx.mtx --C Model1_ParentEd.mtx --surf fsaverage lh --glmdir