Difference between "rand NW" and "permutation" in GLM panel

Dear GraphVar team,

I want to use a nonparametric test to do a group comparison, but I don't know which of the two options of non-parametric test would be apropriate. Could you explain me the difference between them? I think in my case it would be the "permutation" option , but I would like to be sure.

All the best,





Error using DPARSFA_run>(parfor body) (line 3420)
Unable to read file
no such file or directory.





dpabi error

Hi, all

About the output of VBM using DPABI



I preproceed the T1 images for the VBM analysis using DPABI, and I have some inquiries regarding the output files.

I chose the "New Segment + DARTEL" option, and I got files whose prefix are "smwc", "mwc","wc1".

According to the naming convention of output files introduced in the VBM8 manual, "mwc1" seems to mean "modulated warped gray matter segments", and "smwc1" seems the smoothed "mwc1". Here, I am wondering why the smoothed files (smwc1) were generated eariler than the "mwc" files. 


ROI signals and Filtering

Hi all,

I just have a quick query, so I extracted ROI time course from 6 region. At the define ROI stage I added 6 masks and DPARSFA listed in alphabetical order. Whwn i got the results in the ROI signal folder I  have 6 list (6 time course from the masks I defined). My question is are these timecourse columns in order of the the way the mask were listed, so would my first time course be the signals for the first mask of the 6 and so on).


Repeated Measures with more than 2 time points

Dear GraphVar team,

It's possible to do a repeated measures analyses with more than two time points  in GraphVar - Turbo GLM ? 

My goal is to compare 2 groups('Movement' and 'Rest') where each subject in each group has several matrices (several observations).

All the best,



请教关于mixed effect analysis问题


    您好!我想看实验组和对照组治疗前后ALFF差异,是不是应该用mixed effect analysis?我用DPABI做mixed effect analysis后,得出的Interaction_F.nii在Viewer里显示的图像同ANOVA图像,只能看出哪些区域有差异,但是不能看出具体哪些是升高的,哪些是降低的。假设实验组治疗后壳核ALFF升高,而对照组治疗后壳核ALFF不变或降低,请问如果我想看两个组在壳核ALFF的变化不同,我该用什么方法呢?






Possible to create interface pictures and montages by script using function of DPABI viewer?


I'm trying to generate the interface and montage pictures automatically via a script. That is, I want to 

1. Load a nifti file (blobs) onto a T1 anatomical image (like in the viewer)

2. Load a colormap for the blobs

3. Specify an x/y/z coordinate

4. Specify an overlay transparency value (i.e. want to set it to 0 )

5. Create the interface pictures automatically (and save to a folder) at the specified coordinates (just like it can be done with the "save interface as Picture" button only via a function/script)



Time series analysis and ROI signal folder

Hi all, 

So after processing and extracting roi signals, the next step is for me to analyze the roi signals of my subjects using SPSS. Does anyone know what type of analyisis I should carry out on SPSS as I have two groups, one healthy and the other  have Alzheimers.
Whic do I use rregression or corellation.

Also what does the different type of file mean in the results folder for roi extraction. does  Z mean zett?


much appreciation, really  benefiting from this program!!



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