If you use mri_surfcluster, it will output an annotation of the clusters. You can then use mris_anatomical_stats to compute the mean value inside those clusters.

doug

Cindy Eckart wrote:

Dear FreeSurfers,

is there an easy way to extract the mean cortical thickness of clusters according to a predefined t-value threshold? I performed a cortical thickness analysis between 3 groups and found some clusters where the groups differed significantly. Now, I would like to extract the mean cortical thickness within those clusters for further statistical analyses (e.g. regression models). Is there a practical way to do this?

Thank you very much in advance!

Cindy ___________________________________________________________ GRATIS für alle WEB.DE-Nutzer: Die maxdome Movie-FLAT! Jetzt freischalten unter http://movieflat.web.de

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