Motion Data post pre-processing

Submitted by amrithah on Thu, 03/08/2018 - 22:45

Hi,

 

I was wondering where exactly the motion data is location (i.e. mean FD values, or some kind of motion parameters)? I performed pre-processing for subject with GSR/noGSR, so it would be helpful to know where the motion data is located for both types of pre-processing. Thanks!

 

Best,

Amritha

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用dparsf预处理的FunImgNormalizedSmoothedDetrendedFiltered错误

Submitted by LiYaoo on Wed, 03/07/2018 - 09:17

各位老师，我想问下我使用完dparsf预处理数据时，FunImgNormalizedSmoothedDetrended运行结束，运行

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关于FCD的疑问

Submitted by sandy on Mon, 03/05/2018 - 15:55

老师好，我是dpabi的初学者，我有一些问题想请教一下，对于病人组和健康组的预处理是放在同个文件夹中进行处理还是先要分成两组被试，分成两次进行处理？还有我的研究涉及到FCD的计算，需要分别计算contralateral FCD和ipsilateral FCD，在dpabi中能实现这些计算么？

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multivaraite and bivariate GCA

Submitted by butterch on Thu, 03/01/2018 - 09:30

大家好！

我用REST跑了同一个ROI的voxel-wise multivariate GCA和bivariate GCA，结果是一模一样的。我的理解是multivariate会控制其他voxel对当前两个voxel的granger causal connectivity的影响，bivariate GCA则没有。为什么结果是一样的呢？是不是multivariate只对ROI-wise起作用？

谢谢大家！祝大家元宵节快乐~

 

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GraphVar 2.0: 'Machine Learning' released

Submitted by Johann Kruschwitz on Wed, 02/28/2018 - 17:54
GraphVar 2.0: A user-friendly toolbox for machine learning on
functional connectivity measures
 
Background: We previously presented GraphVar as a user-friendly
MATLAB toolbox for comprehensive graph analyses of functional
brain connectivity. Here we introduce a comprehensive extension of
the toolbox allowing users to seamlessly explore easily customizable
decoding models across functional connectivity measures as
well as additional features.
 

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zROI1FCMap vs. ROI1FCMap question

Submitted by amrithah on Wed, 02/21/2018 - 21:25

Hi,

I just finished pre-processing my subjects successfully using DPARSF, and saw that in the 'FC_FunImgARCFWS' folder, there are two types of .nii files - zROI1-160.nii (i used the Dosenbach 160 atlas so had files ranging from ROI1 to ROI160), and ROI1-160.nii. files. I'm a newbie to resting state imaging, and was wondering which file was to be used to create ROI FC matrices for each subject? Would it be the ROI1-160 files (and not the z scored files)? Thank you!

 

Best,

Amritha

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Error using w_ClipLevel (line 50) Subscript indices must either be real positive integers or logicals.

Submitted by NinavanBruggen on Thu, 02/15/2018 - 17:11

Hi,

I get the following error when running dpabi. I have tried restarting it again from the FunImgR but the same problem occurs. 

I'm accessing Matlab from a Linux computer on a Windows server, could that be the cause of the problem and is there a way to solve this?

Error message:

 

Reading images from "\\Client\H$\testrun6\FunImgR\102\r102.nii" etc.

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预处理被试的功能像，使用dartel模板进行空间标准化，发现一组一组预处理与两组被试放在一起预处理的结果发生变化。

Submitted by zhang yifan on Sun, 02/11/2018 - 10:48

（1）老师好，预处理被试的功能数据，使用dartel模板进行空间标准化，发现两组分别预处理与两组被试放在一起预处理后结果发生变化。分开预处理的结果更加显著（fALFF计算）并且新增加了显著脑区，请问这样是正常的么？

Forums:

Statistical methods

Submitted by Zhonglin on Thu, 02/08/2018 - 02:48

Reviewer Comment:

Forums:

Statistical methods

Submitted by Zhonglin on Thu, 02/08/2018 - 02:34

Question:

Are the statistical methods used valid?

Reviewer Comment:

No. While the statistical methods used are reasonable thresholds are quite liberal for a resting state imaging paper

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