Hi,

I'm attempting to get a cluster size threshold for FWER correction.
What I've done in the past year or two is use 3dFWHMx with the -acf flag on the error timeseries to get a blur estimate for each subject, and then enter the mean blur estimates across subjects into 3dClustSim to get a table of cluster thresholds.

From the documentation, I understand that the recommended method these days is to use 3dttest++ with the -Clustsim flag, however I'm not quite sure what the correct input (or, more strictly, the best for correctly reducing FWER) would be for this method? Should I still be using the error timeseries (i.e. only looking at the variance that is not explained by our model), or some other input?

And whatever the correct input should be, am I correct in thinking that the subject files in question should be handed to 3dttest++ as subbricks of a single bucket?

Thanks!



Edited 1 time(s). Last edit at 10/30/2019 07:13AM by henrybrice.