How to add covariates in Mixed Effect Analysis?

Submitted by megan on

Dear Dr. Yan,

I encountered a problem while doing Mixed Effect Analysis. I wanted to add covariates (age, gender and handness). But the problem is that the covariates are the same for both condition 1 and condition 2.

I added as

group1_cov.txt

group1_cov.txt

group2_cov.txt

group2_cov.txt

Then Dpabi ran for hours and gave weired results. I also tried to name the covariates differently but it didn't work either. I wonder what is the proper way to add covariates in Mixed Effect Analysis. 

Thank you!

Best Regards,

Mengjiao

dparsf预处理出错,非常紧急,求老师们帮看看

Submitted by keke on
 
Error in DPARSFA_run>(parfor body) (line 274)
        if strcmpi(DirDCM(3).name,'.DS_Store')  %110908 YAN Chao-Gan, for MAC OS compatablie
 
Error in parallel_function (line 466)
            F(base, limit);
 
Error in DPARSFA_run (line 270)
    parfor i=1:AutoDataProcessParameter.SubjectNum
 
Error in DPARSFA>pushbuttonRun_Callback (line 1786)
    [Error]=DPARSFA_run(handles.Cfg)

Group gray matter density mask

Submitted by Peace on

Dear Experts

I would like to genearate a group GM mask by using DPABI's quality control module.

In my understandings, I could generate a GroupMask90Percent.nii based on wAutomask, and then thresholding the mask.

  1. How to create a group specific GM mask by using QC module?

In addition, all images must have the same dimension for statstiscal analysis.

If a group GM mask was generated using SPM Masking toolbox, and then reslicing the mask.

      2. The resliced mask looks a little bit different, how to solve this issue?

DPASFA做功能连接时的输出文件

Submitted by PengyuZhang on

严老师,您好!

   我在用DPASFA做功能连接时对输出结果有一些疑惑,想跟您询问一下。

   我选取了14个AAL脑区做成一个MultipleLabel的模板,勾选了Functional Connectivity和Extract ROI time course。

   在输出的结果中,FC_FunImgARCWSF文件夹中的SeedSeries和ROISignals_FunImgARCWSF的值不一样。我的理解是SeedSeries和ROISignals应该都是某个脑区信号的时间序列的平均值,请问我的理解对吗,如果不对,那这两个文件实际上对应的是什么值?另外,FC_FunImgARCWSF文件夹中的ROI1FCMap_sub1.nii文件是某个脑区所有体素的信号均值与全脑的连接强度,还是某个脑区的中心坐标的信号与全脑的连接强度?

   期待您的答疑,十分感谢!

 

Some error in DPABI Tool

Submitted by jLee on
 Dear
 
 The following error occured  when preprocessing ADNI data.  
------------------------------------------------------------------------
Running job #1
------------------------------------------------------------------------
Running 'Slice Timing'
 
SPM12: spm_slice_timing (v6130)                    11:45:40 - 12/06/2018
========================================================================
Number o