Hi Tim,

There is no established criterion and a recent, useful guideline is perhaps use the threshold that would correspond to a p=0.001, that is, about 3.1 in a z-map (see Woo et al., Neuroimage, 2014).

All the best,

Anderson

On 1 September 2016 at 18:57, Timothy Hendrickson <hendr522@umn.edu> wrote:

Freesurfer Experts,

I am currently using a Monte Carlo Z-Simulation to perform multiple comparisons on a data set.
I have played around with various cluster forming threshold and cluster wise thresholds.
I have no idea what would be considered "too liberal" or "too conservative" of thresholds and I have not found much literature that decimates this either.
Are there any general best practices I should follow when determining these thresholds?

Respectfully,

-Tim

Timothy Hendrickson
Department of Psychiatry
University of Minnesota
Mobile: 507-259-3434 (texts okay)

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