Re: [Freesurfer] mri_glmfit-sim mc-z comapred to mc-full

2015-02-03 Thread Corinna Bauer
Thanks, Doug. On Tue, Feb 3, 2015 at 10:37 AM, Douglas Greve wrote: > Hi Corinna, > > In each iteration, the mc-full replaces your data (--y) with white > gaussian noise, smoothes it, then computes the GLM and p-values from the t > or F-test. The mc-z ignores your data entirely and creates a si

Re: [Freesurfer] mri_glmfit-sim mc-z comapred to mc-full

2015-02-03 Thread Douglas Greve
Hi Corinna, In each iteration, the mc-full replaces your data (--y) with white gaussian noise, smoothes it, then computes the GLM and p-values from the t or F-test. The mc-z ignores your data entirely and creates a single frame of WGN in each iteration, smoothes it, rescales it back to a z, t

[Freesurfer] mri_glmfit-sim mc-z comapred to mc-full

2015-02-03 Thread Corinna Bauer
Hi all, I am wondering what the specific reasons might be for choosing to run the mc-z simulation compared to mc-full? What are the pros and cons for each method for looking at group morphometry differences? Thanks Corinna ___ Freesurfer mailing list Fr