By non-stationarity, I assume you are talking about variable smoothness
across the cortical surface? We don't correct for it right now, which
means that p-values for clusters in low-smoothness regions will be a
little conservative and those in high-smoothness regions will be a
little liberal.
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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
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 m
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 b
