DPABI/DPABISurf/DPARSF

Group ICA

Submitted by 18483620297 on

           尊敬的专家:

                           您好,我有一个很愚昧的问题需要请教。在做Group ICA分析正常人与病人的时候,我们应该将正常人和病人分别作为一组进行Group ICA,还是应该将正常人与病人都放在一起然后进行Group ICA?

                 

关于头动排除指标的疑问

Submitted by Czh on

尊敬的严老师您好:

       我目前参与分析的两组被试中,第一组有114例,第二组19例,扫描时voxel为4x4x4,我若将排除头动的标准由3mm/3 degree+FD>0.2升高至4mm/4 degree+FD>0.2,第二组可增加3例被试,这样的排除头动标准审稿人会接受吗?

      感谢严老师

 

DAPBISurf 使用问题请教

Submitted by ly666 on

各位老师好,

        最近正在学习DPABISurf的使用,也研究了fmriprep。相比于官方的fmriprep,DPABISurf提供了更好的交互界面(用户体验),以及后续的一系列处理,如regress out nuisance, smoothing,filtering ..., 十分方便,感谢DPABI团队提供如此优秀的工具包。在使用的过程中我也遇到了一些问题,希望各位老师指教。

       1) 关于fmriprep提供的volume空间分辨率只有1m, 2m 和 native, 如果想要配准到3m*3m*3m标准空间怎么办?(数据的原始分辨率比较大,2m会增加计算负担,且可能信息冗余)。如果可以直接resample的话,我应该先配准到哪个分辨率(1m,2m 或者 native)?如果我的处理步骤是FunVoluWCSF的话,我应该把resample放在哪步之后比较好?

Functional Connectivity and statistical questions

Submitted by Jaczhao on

Dear professor Yan, 

I'm using the dpabi toolbox to calculate functional connectivity for two group of subjects and trying to compare the result, and I have the 3 following questions:

1. Which text file I should select to put into network analysis for graphic properties: the one from 'ROISignals_FunImgARCWS' or the one from 'ROISignals_FunImgARglobalCWS'?

2. The similar one with the first: which result I should look at if I want to compare FC results between the two group: the ones from 'FC_FunImgARCWS' or 'FC_FunImgARglobalCWS'?

Error Message while running Statistical Analysis with dpabi

Submitted by Docli on

Dear Professer Yan Chao-gan:

          The resting state function data are preprocessed by DPABI software, and the ReHo and ALFF parameters are obtained. now, in order to carry out the ANOVA analysis of repeated measurement, there are the following errors. However, the software did not report an error when running one sample T test. 

Running DPABI with singularity

Submitted by ping on

Hello,

I am helping a user setting up a singularity container for DPABI. I have created a DPABI singularity image from the docker image. But when running 'run_DPABI_StandAlone.sh', I got the following error. It tries to extract the CTF file to a directory which doesn't seems to be writable. Any idea what's wrong and how to resolve it?

 

$ singularity exec -B /path/to/mydata:/data,/path/to/mylicense.txt:/opt/freesurfer/license.txt /tmp/dpabi.sif /opt/DPABI/DPABI_StandAlone/run_DPABI_StandAlone.sh /opt/mcr/v98

关于viewer里面的GRF和AlphaSim

Submitted by Oscar on

各位老师好,

    关于viewer,严老师在视频中提到可以使用GRF和AlphaSim的方法对统计的结果进行校正,而且在弹出的窗口中应该选择一个mask文件。

然后问题就来了,按照我的理解该mask应该是前面QC时产生的groupmask,即包含了90%的体素的才放进来做统计分析,不然后面的结果也不知道怎么解释……

而输入这个mask之后就会使得FWHM都为NaN;如果点击estimate smoothness,则会报错,如图“error in estimate smoothness”所示。

这时我注意到该过程是要将T值转为Z值,虽然不是很清楚其中的原理,但是我就换了一个two sample T test 的结果图上去,发现果然可行,唯一的问题就是FWHM仍然都是NaN……

所以这个到底是什么情况?是我理解错了,需要放入的是T值图么?而且T值图也不应该出现Inf(我在打开viewer的时候发现自动生成的Nmax和Pmax都是Inf,这也是个问题)么?

dpabi -'matlab.ui.Figure' problem

Submitted by lucy on

老师,您好,我是在Linux(opensuse)的matlab 2015b(SPM 12)上用DPABI_V4.3_20040进行2个被试进行分析,然后就在“PicturesForChkNormalization”部分,就报错(如下图)。但问题是每次只要跑一个人的数据的时候就没有问题。我看FAQ中其他人也遇到过类似的问题,解决办法有“缩短被试文件名”、“更新spm”等等。这两个我都是试了。但是还是没有解决这个问题。

 

Error with DAPBI-DPARSFA preprocessing

Submitted by Docli on

Dear Professer Yan Chao-gan:

          I used Matlab 2010b 7.11 cracked version, spm8 and the latest version of dpabi to process the test data DEMO provided by our website. When the program runs to normalize, the following error occurs. The occurrence of the above errors has nothing to do with the execution of reorient Fun * and reorient T1 *.