Dear FS Experts,
I have followed the steps for doing a Repeated Measures ANOVA 2x2 in Freesurfer https://surfer.nmr.mgh.harvard.edu/fswiki/RepeatedMeasuresAnova also following the previous post: https://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/2012-October/026287.html . <https://surfer.nmr.mgh.harvard.edu/fswiki/RepeatedMeasuresAnova> I have already created the FSGD File (2 groups: experimental and control group) and 2 times (pre-treatment and post-treatment) (I send it attached), and specified the contrasts of the model: Tp1vsTp2Gr.Exp > 0 0 1 0 Tp1vsTp2Gr.Control > 0 0 0 -1 Interaction Effect > 0 0 1 -1 Are these contrasts correct? I have runned the mri_preproc command, and the "lh.thickness.mgh" file has been created. However, when I run the next step, the smoothing, an error message appears "ERROR: Option lh.thickness.mgh unknown". Am I doing something wrong? The smoothing is an optional step, therefore, I run the mri_glmfit, (I send attached the mri_glmfit.log file), and what appears in the terminal is the file "Results_ANOVA2x2". I this file "Results_ANOVA 2x2" two lines appear: 0 Tp1vsTp2.GrExp 0 0.740532 1 Tp1vsTp2.GrControl 0 0.672022 The first one is telling us that the cortical thickness in the experimental group was Tp1>Tp2, and the same for the control group? Where can I find the interaction results? Thank you for the help, Maria.
ANOVA2X2.fsgd
Description: Binary data
$Id: mri_glmfit.c,v 1.196.2.8 2012/11/01 18:51:41 greve Exp $ cwd /home/pd_naroa/subjects/qdec cmdline mri_glmfit --glmdir lh.anova2x2 --y lh.thickness.mgh --fsgd ANOVA2X2.fsgd doss --C Tp1vsTp2GrExp.mtx --C Tp1vsTp2GrControl.mtx --C Interaction.mtx sysname Linux hostname neuroimagen1 machine x86_64 user pd_naroa FixVertexAreaFlag = 1 UseMaskWithSmoothing 1 OneSampleGroupMean 0 y /home/pd_naroa/subjects/qdec/lh.thickness.mgh logyflag 0 usedti 0 FSGD ANOVA2X2.fsgd glmdir lh.anova2x2 IllCondOK 0 ReScaleX 1 DoFFx 0
Results_ANOVA2x2
Description: Binary data
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