Hi everyone
I'm using DPARSF to extract Z-maps between 8 seed regions which I then correlate in SPSS. The aim of my study is to relate resting state activity to a couple of behavioral measures. I realise that I need to conduct some form of multiple comparison correction on my correlations, but is it necessary for me to perform AlphaSim on my resting state data in DPARSF/REST before even taking it to SPSS? And if so, can someone please give me some insight on how to do this?
Thank you in advance.
/Eva
Hi Eva,
Hi Eva,
In such a case (correlations between 8 seed regions), people don't do AlphaSim or GRF correction, as those took spatial extent into account -- which you don't have.
FDR correction is more appropriate in such a case. You will need to do FDR correction among the (8*7)/2 edges.
Best,
Chao-Gan
Hi, Chao-Gan
Hi, Chao-Gan
Thank you for your quick reply. I must admit I'm not sure how to conduct such a correction (FDR correction among the (8*7)/2 edges). It's the edges part that I can't really wrap my head around.
/Eva
Re: [RFMRI] AlphaSim
:-) Sadly, I don't have any
:-) Sadly, I don't have any facebook friends remotely interested in MRI research... I think I will work something out.
On a completely different note, I just started looking at DPABI and it's looking really good. I'm wondering how similar it is to DPARSF? Is it possible to take files generated from DPARSF (from pre-processing for example) and put them into DPABI for various statistical analysis, or is it necessary to do everything over again using DPABI?
Thank you!
/Eva
Hi Eva,
Hi Eva,
That doesn't matter, I am just kidding.
You can like our facebook page though: http://facebook.com/rfmri
Yes, DPABI included DPARSF as a component. Please have a look on The R-fMRI Course V2.0 at http://rfmri.org/Course
Best,
Chao-Gan