What are those predefined spheres?

Submitted by phil1022 on Thu, 12/17/2015 - 21:09

Dear Chao-Gan,

    In your most recent version of DPARSFA, you added a new version of templete. In this new templete, once clicked in the Define ROI interface, there are a lot of predefined 5 mm sphere ROIs along with AAL and other ROIs.

    I did not pay attention to them at begining which turned out to be over 70 G of masks when I selected "wrap back to native space".

    Anyway, I do appreciate predefined spheres that can help us unify analysis accross studies. However, you did not provide a list of discription of these spheres which makes them useless. I don't really know how to utilize them efficiently. By finding a particular sphere may be more difficult than define one by ourselves.

    I'd like to see your opinion on this.

    Thanks for providing such a powerful tool.

    With kind regards.

    Sincerely,

    Xiaosong

Forums:

YAN Chao-Gan

Sat, 12/19/2015 - 13:22

Hi Xiaosong,

Those sphere ROIs were defined by  Dosenbach et al. (2010). Dosenbach, N.U., Nardos, B., Cohen, A.L., Fair, D.A., Power, J.D., Church, J.A., Nelson, S.M., Wig, G.S., Vogel, A.C., Lessov-Schlaggar, C.N., Barnes, K.A., Dubis, J.W., Feczko, E., Coalson, R.S., Pruett, J.R., Jr., Barch, D.M., Petersen, S.E., Schlaggar, B.L., 2010. Prediction of individual brain maturity using fMRI. Science 329, 1358-1361.

Those preselected masks are utilized for a big data sharing initiative, i.e., preprocess all the open R-fMRI data, as well as provide a platform for all the researchers share their R-fMRI maps processed by a standard procedure with DPARSF.

We will release a minor revision of DPABI soon, by add a button "Remove all ROIs" in the ROI setting panel.

Given your feedback, we might consider to remove the Dosenbach 160 ROIs from the preselected list.

Best,

Chao-Gan

 

phil1022

Sun, 12/20/2015 - 16:20

Dear Chao-Gan,
    Thanks for the clarification and providing the citation! It's really helpful!

    With kind regards.

    Sincerely,
    Xiaosong


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