Re: [Freesurfer] determining sizes of clusters at given CWP cutoff

I don't have an easy way to do this, sorry. Robert Levy wrote: Hi, I was trying to figure out if there is any way to determine the exact size at which clusters becomes significant given a specified significance, and it appeared from the mc-corrected overlay that in this overlay the clusters

Re: [Freesurfer] determining sizes of clusters at given CWP cutoff

Thanks! This sounds very promising and we will try that time using the code you sent. As for the current mc data from mri_glmfit, does anyone know if Freesurfer can give cluster sizes as a function of corrected p-value like AFNI does? Thanks, Rob Don Hagler wrote: There is no reason why yo

RE: [Freesurfer] determining sizes of clusters at given CWP cutoff

There is no reason why you shouldn't be able to get the cut-off size from monte carlo simulations. It just depends on the program you use to do it. For example, AFNI's AlphaSim gives cluster sizes as a function of corrected p-value. By the way, monte carlo simulations are a waste of time.