DPABI/DPABISurf/DPARSF

据说所知，在DPABI里面应用ROI  signal extractor 对mwrp文件进行提取提取的是平均灰质体积，请问如何才能实现计算一个脑区（如海马）的绝对体积或相对体积呢？课题组有师兄是基于AFNI软件用代码实现了脑区内的逐体素相加，DPABI里是否能实现这样的功能呢？

Dear Dr. Yan,

I have a question about changing voxel size.

I want to get ROI signal by applying Yeo atlas.

I have fMRI data with 3mm voxel size but there are only 1mm and 2mm voxel size Yeo atlas.

So I want to change 3mm voxel size to 2mm in the preprocessing process using DPABI.

Could I simply change voxel size on the DPABI like the image I uploaded?

Could you give me some advice on this problem?

Thank you.

在可视化操作中发现reho值 (F_reho_PairwiseDiff_Z_G1vsG2.nii) 的结果无法成功显示. 提示内容是 Error using ones (NaN and Inf not allowed). Please help.

I've been doing research on Reho reliability recently.In the meantime, I use DPARSFA for data preprocessing,Then I had some problems.first,Should I choose smooth derivatives?second,if I choose smooth derivatives,I'll get two folders :Results and ResultsS. I will get the mReho,Reho,zReho and smReho ,sReho ,szReho,Which file is generally used to analyze the reliability of Reho?

I've been doing research on Reho reliability recently.In the meantime, I use DPARSFA for data preprocessing,Then I had some problems.first,Should I choose smooth derivatives?second,if I choose smooth derivatives,I'll get two folders :Results and ResultsS. I will get the mReho,Reho,zReho and smReho ,sReho ,szReho,Which file is generally used to analyze the reliability of Reho?

Dear DPARSF developers

Thanks for the recent updates.

How to extract the corresponding coordinates in MNI space for Schaefer2018_400Parcels_7Networks?

Best wishes

Larry Lai

After completing the two-sample t-test by SA, two files were generated：T2& T2.nii_Cohen_f2.

What is the meaning of this document T2.nii_Cohen_f2？

Dear Yan,

I did a "head motion scrubbing regressors" in the nuisance regression step in DPARSFA in my study. The reviewer asked me how this was performed in detail. I know this is different from the "scrubbing" at the bottom of DPARSFA, so it's inappropriate to cite Power et al., 2012. But is there any reference that I can refer to? Is the processing the same to what the FSL's motion outliers tool (http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLMotionOutliers) does?

Thank you so much.

Minlan

Hi, pro. Yan

I had used DPARSF A computed whole-brain  FC  with a specific ROI (a sphere) a few days ago, and I have the individual FC results.

Now, I want to extract the time courses of a specific region (already have the mask) in these individual results image

Can DPARSF A achieve that?

How should I do?

Particularly, I do not know what is the right "Starting Directory Name".

Thanks for your reply!

BEST WISHES!

Lucy

Dear experts:

I performed a paired t-test and the output were the TP.nii  image and the effect size map. I could not find information about the output in the online courses.

Would you explain how I should make sense of this T statistical image output ( including the 3 values: P, Thrd and the one on the very top under Brain Images catogory?

How do I know if there is a significant difference between the 2 conditions that I have given from this image? Does P stand for P-value, if I set it up to 0.05, what information should I look for?