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 http://dx.doi.org/10.1016/j.neuroimage.2013.12.058).
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)
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.