DPABI/DPABISurf/DPARSF

Questions about CWAS

Submitted by sha.zhiqiang@163.com on
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DPABI/DPABISurf/DPARSF

Dear Dr. Yan,

Recently, I used y_CWAS.m to perform the CWAS analyis. I have several questions about the CWAS analysis.

[p_Brain, F_Brain, Header] = y_CWAS(DataUpDir, SubID, AResultFilename, AMaskFilename, Regressor, iter, IsNeedDetrend, Band, TR)

For the annotation of "Regressor", it said "the regressors, nDimTimePoints by nRegressor matrix".

请问一下DPABI生成的headmotion这个文件里面20列具体代表什么？

Submitted by doctorsol on
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DPABI/DPABISurf/DPARSF

各位老师好，我是用DPABI里的friston24做的头动处理，请问一下headmotion里生成了一个矩阵，行我知道是被试，列有20列是代表什么呢？ 

另外如果想报告FD的话，报告哪个值比较好呢？POWER还是jenkinson？有没有报告的样板文献推荐？

The interpretation of the TFCE results

Submitted by zuolonglotu@gm… on
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DPABI/DPABISurf/DPARSF
Dear Prof. Yan,
 
I would like to know how the TFCE results can be used, the names of the files are listed as follows. 
 
T2_vox_tstat_uncp
T2_vox_tstat_fwep
T2_clustere_tstat
T2_clustere_tstat_fwep
T2_tfce_tstat
T2_tfce_tstat_uncp
 T2_tfce_tstat_fwep
 
Thank you!
 
Best wishes,
 
Lotus

计算REHO和ALFF前是否需要去全脑信号？

Submitted by doctorsol on
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DPABI/DPABISurf/DPARSF
 
各位老师，我在同一项研究中，功能连接的组间差异结果是基于去除全脑信号的文件得出的。现在又要补充分析ReHo和Alff的结果，是否应该继续使用去除全脑信号的文件进行分析？
 
我查看到DPABI自动生成的ResultsS下面的文件，smReHo代表（除全脑均值, Zang et al., 2004）或szReHo代表 (减全脑均值，除全脑标准差，Zuo et al., 2013).这两个结果本身会对全脑均值进行处理？所以有些疑惑了。如果我用去除全脑信号的文件进行分析是否会对结果造成影响？所以是否还是应该使用包含全脑信号的文件进行处理？但是又是否会因为功能连接的结果是基于去除全脑信号的文件得出的，而使审稿人疑惑？
这种情况下如何决策比较好？

请问采用不同mask计算功能连接矩阵

Submitted by spl1234 on
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DPABI/DPABISurf/DPARSF

老师，您好：

最近在用DPARSF分析一组数据，在处理步骤上存在一些疑问：

1.请问在做scrubbing的时候，勾选了Head motion scrubbing regressors后，还需要在后面勾选Scrubbing吗？

2.请问在采用不同mask计算功能连接矩阵的时候，需要事先将不同模板进行配准么？DPARSF有做相应的处理么？

3.如果想要一个mask一个mask的计算功能连接矩阵的时候，我们的starting Directory Name是选择FunImgARCWSF吗？

4.因为在计算前已经勾选了Smooth，在计算完指标后是否还需要进行Smooth Derivatives呢？

 

还望老师百忙之中可以给予解答，十分感谢！！

Input data for PT TFCE

Submitted by incesoy on
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DPABI/DPABISurf/DPARSF

Hello,

I am doing second-level rsfMRI analysis with fALFF data in ~530 participants and try to use PT with TFCE for multiple comparison. I´have a very basic problem: I didn't understand which file/folder to chose for 'Group Images' at the section statistical analysis of DPABI Toolbox.

I've already check the slides, which don't mention about input.

rfmri.org/content/permutation-test-dpabi website also doesn't give the clue.

Should I use fALFF maps? I would be happy to hear the right way to do it, before MATLAB would be unresponsive for hours..

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