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Dear experts,

following on this old thread, do you have any new knowledge on the possible severity of non-stationarity in cortical-thickness maps and its effect on permutation-based cluster-extent inference? Given current status of development, is here a possibility to estimate it/correct for it?

Regards,

Antonin Skoch

Hi Hugo, they are assumed to be stationary. I've never tried to figure out how much of a problem this is.

doug

On 7/25/12 6:03 PM, Hugo Baggio wrote:

Dear all,
I have been performing cortical thickness analyses and as far as I understand the thickness maps are non-stationary (please correct me if I'm wrong). I have two questions: 1. How susceptible is Monte Carlo clusterwise correction to this(should I expect clusters at smoother areas to be bigger?)? 2. Does FS perform some sort of correction to this non-stationarity or are images assumed to be stationary at statistical analyses?
Thanks a lot for your help!

Hugo