Re: [Freesurfer] Monte-Carlo Cluster Correction

2014-01-27 Thread Douglas N Greve
Yes, you need to correct over both hemispheres. The way we do this in FreeSurfer is to first correct over the hemispheres independently. This gives a cluserwise p-value for each cluster. We then bonferroni correct across hemispheres, which basically means multiplying the clusterwise p-value by

[Freesurfer] Monte-Carlo Cluster Correction

2014-01-27 Thread Cat Chong
Dear Experts,   I was wondering if you could possibly help me with a reviewer-related question:   We conducted a between-group-analysis estimating the interaction between cortical thickness and age.  In summary, we wanted to investigate whether the interaction between cortical thickness and age is