afni.nimh.nih.gov

I'm bumping this to see if someone could please help me with these two questions. To summarize, they are:

1) Why does 3dttest++ change the temporal degrees of freedom when -etac is invoked?
2) Why would including multiple hpows when -etac is invoked produce significant clusters that don't pass correction for any hpow setting alone?

I'd be happy to provide some data if that would help diagnose what I'm seeing. Thanks so much!

Anthony