Re: [Freesurfer] Compare vertexwise correlation maps

2019-09-04 Thread Greve, Douglas N.,Ph.D.
I'm not sure you can. Unless you have multiple samples, you can't compute a variance. If you can't compute a vvariance, then  you can't compute a significance. Maybe you can do some kind of bootstrapping On 9/3/19 1:49 PM, Matthieu Vanhoutte wrote: > External Email - Use Caution > > So

Re: [Freesurfer] Compare vertexwise correlation maps

2019-09-03 Thread Matthieu Vanhoutte
External Email - Use Caution So if I obtained two correlation maps from the same population but based on different input parameters, how could I demonstrate that vertex correlation values are statistically « strongest »/« lowest » in one of the map compared to the other ?

Re: [Freesurfer] Compare vertexwise correlation maps

2019-09-03 Thread Greve, Douglas N.,Ph.D.
You want to see if the correlation values themselves? You can't do that (unless you have a bunch of correlation maps). You have to incorporate your question/hypothesis into the design and contrast. On 9/2/2019 11:14 AM, Matthieu VANHOUTTE wrote: > External Email - Use Caution > > Dear