Use this version of mri_glmfit. For t-tests is will automatically compute a partial correlation coefficient (pcc.mgh) ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/mri_glmfit
On 04/04/2016 12:12 PM, Morenikeji Adebayo wrote:
Hello Freesurfers,
I'm interested in creating a group map where each vertex/voxel represents the correlation (as a correlation coefficient) between a task-related BOLD contrast values (ces.nii.gz) and a single covariate. This is analogous to a cortical thickness GLM with one group and one covariate, but I'd want an r-map instead of a log10p-map.
How exactly might I do this? I’m trying to accomplish this using mri_glmfit, but I’m having generating output that is interpretable in terms of a correlation coefficient and in particular, the direction of the effect.
Thanks, Keji
Morenikeji Adebayo Clinical Research Coordinator Department of Psychiatric Neuroscience Massachusetts General Hospital (p) 617.643.6347 keji@nmr.mgh.harvard.edu mailto:keji@nmr.mgh.harvard.edu
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