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

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