Dear FreeSurfer experts,
we calculated a GLM in qdec with our experimental variable (continuous), age and gender as covariates and LGI. We found significant clusters and corrected them for multiple comparisons with Monte Carlo Z Simulation. We found several significant clusters and looked at the correlation plots qdec displays automatically. In qdec we created labels from this clusters and mapped these to all subjects of our table.dat. Then we used mri_segstats to generate textfiles (.stats) listing our lgi values for each participant. Afterwards we correlated the lgi values with our experimental variable to plot the correlation. We used partial correlations and corrected for gender and age in SPSS.
Sadly, we found no correlation between lgi values and our experimental variable anymore. How can this statistically be explained? Is there anything we did wrong?
Thank you in advance! Best regards, Nora and Christian
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