In addition to that: I am always getting positive correlations (when I load sig.mgh) every time i.e. even when I correlated thickness and gyrification. None of the voxels/areas showing negative correlation between any of the structural measures
On Thu, May 11, 2017 at 11:26 AM, Martin Juneja <mj70...@gmail.com> wrote: > Hi Dr. Greve, > > I doubt these results because of following: > > (1). When I compare sig.mgh files created using following two commands > i.e. correlation between LGI and CV versus CV and LGI: > mri_glmfit --y Corr_CV_LGI/lh.LGI.10.mgh --fsgd CV_LGI.fsgd dods --C > Corr-VL-cor.mtx --surf fsaverage lh --cortex --glmdir > Corr_CV_LGI/lh.VL.glmdir --pvr Corr_CV_LGI/lh.CV.10.mgh > and > mri_glmfit --y Corr_CV_LGI/lh.vol.10.mgh --fsgd CV_LGI.fsgd dods --C > Corr-VL-cor.mtx --surf fsaverage lh --cortex --glmdir > Corr_CV_LGI/lh.VL.glmdir --pvr Corr_CV_LGI/lh.LGI.10.mgh > > (a). I do not get identical maps. Please find attached screen shot. > (b). Here, colorbar showing a value of around 30, does that reflect > -log10(p)? I am not sure if thats normal? > > (2). Assuming magnitude from colorbar is normal then I performed FDR > correction- I am assuming its same command as following as mentioned in FS > manual: > mri_glmfit-sim --glmdir Corr_CV_LGI/lh.VL.glmdir --cache 1.3 pos --cwp > 0.01 --2spaces > > After running FDR correction, cache.th13.pos.sig.cluster.mgh and > cache.th13.neg.sig.cluster.mgh, none of these are showing me any > significant clusters, instead its showing a constant magnitude (same color) > over whole brain? > > Thanks. > >
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