DPABI/DPABISurf/DPARSF

Questions about correlation analysis(statistical analysis) in DPABINET

Submitted by DHLee on
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DPABI/DPABISurf/DPARSF

Hello, Prof. Yan~!

Previously, I performed correalation analysis using 'statistical analysis menu' in 'DPABI' to calculated R maps(in this case, I calculated voxelwise R maps between fALFF maps and clinical measures). 

Now I am trying to perform correlation analysis using 'statistical analysis menu' in 'DPABINet' to calculate R matrix(containing r-value matrix with clinical measures, ex. 160x160 matrix) associated with clinical measures. 

Therefore, this time, I try to do correlation analysis in edge level, not voxel-level(I try to perform NBS later). 

关于DPARSF/DPABISurf 中“nuisance covariate regression”模块的“other covariates”功能

Submitted by GuoBW on
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DPABI/DPABISurf/DPARSF

各位老师好：

          我在使用DPARSF/DPABISurf的过程中，在回归协变量中勾选了other covariate，弹出一个ROI list对话框，添加了一个ROI（mask），但是在运行过程中会出现报错，请问是什么原因呢？（我的目的是探究下丘脑的前部和后部与全脑的功能连接，把整个下丘脑的信号作为一个协变量，即ROI）。

          另外，我发现，在回归协变量中，勾选了global signal（即只做GSR）之后，生成的文件名中是没有global的。我通过处理后的数据看了一下，发现是回归了global signal，只不过是文件名没有带global ，这方面能否进行优化呢？我感觉这个容易造成混淆。

 

            谢谢老师。

            祝好！

皮层模板的信息

Submitted by Lee on
Forums
DPABI/DPABISurf/DPARSF

严老师好，各位老师好，我想要做surf的脑网络分析，不过surf工具包里给的模板并没有像Dosenbach模板那样提供模板信息，在这里想向老师们求教一下，我去哪里可以获取surf工具包里面HCP-MMP1.labe，Yeo2011_7Networks_N1000.label和Yeo2011_17Networks_N1000.label的模板信息呢？希望能得到你们的指导。

皮层模板的信息

Submitted by Lee on
Forums
DPABI/DPABISurf/DPARSF

严老师好，各位老师好，我想要做surf的脑网络分析，不过surf工具包里给的模板并没有像Dosenbach模板那样提供模板信息，在这里想向老师们求教一下，我去哪里可以获取surf工具包里面HCP-MMP1.labe，Yeo2011_7Networks_N1000.label和Yeo2011_17Networks_N1000.label的模板信息呢？希望能得到你们的指导。

Questions about effice size cohen's f2

Submitted by jujube on
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DPABI/DPABISurf/DPARSF

Dear Dpabi experts
 I conducted a paried t-test on RS-fMRI metrics, I got TP.nii and TP_cohen's f2.nii. I am confused about why the effect size map for paired t-test was calculated in the form of cohen‘s f 2 instead of cohen‘s d.
I appreciate your clarification, thanks in advance for your time and reply.
 
 
Ei
 
 
 

 

FC_FunImgARglobalCWF and FC_FunImgARCWF folders

Submitted by CHL on
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DPABI/DPABISurf/DPARSF
Dear all,
 
I have a simple quedtion about the difference between FC_FunImgARglobalCWF and FC_FunImgARCWF folders.
 
If I'm correct, the former one, FC_FunImgARglobalCWF, is the result without regressing out GSR, and the latter one, FC_FunImgARCWF, is the result after regressing out GSR. 
 
Do I understand the contents of the folders correctly?
 
 
 
Thanks.
 
Best regards,
 
Chih-Hao 

After GRF correction, significant clusters are larger

Submitted by Kaiyu Huang on
Forums
DPABI/DPABISurf/DPARSF

老师好！

我在对一张R.nii图像进行GRF矫正之后，发现看到的cluster比没做矫正之前更大了，这是不是不合理啊？

我的操作是这样的：

1）在Dpabi View的overlay里选定一张R.nii 图像 （这个界面的Nmax 和Nmin分别代表什么呢？我在两台不同电脑上打开同一个图，它出现的数字是不一样的）

2）在Overlay configure 输入P（0.05），df=5（sample size =7。 这里有点奇怪，df改为5后，accept了，但是重新点开‘df’，又是原来默认的数字，得改两遍才会变成我想要的那个数字。）

    完成这一步之后，看到的cluster都很小很小，应该是过不了GRF矫正了？

3）Cluster里那一栏选GRF，选定我自己的mask--- voxel p value （0.0214）----cluster p value（0.05）---- Two tailed----Compute

    这一步之后，激活的团块面积就变大了！

 

请求老师解答！非常谢谢！！

 

 

 

 

using DPABI on a preprocessed

Submitted by afarzinkhan on
Forums
DPABI/DPABISurf/DPARSF

Dear community

I hope this email finds you well

 

I would kindly ask if it is possible to use DPABI on a data which has been preprocessed using FSL?

 

The data we will use is a resting fMRI data and we would like to do ALFF/fALFF and ReHo analyses on this data..

 

 I would be very end thankful if you can help. 

 

Best Regards

 

 

Farzin

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