DPABI output- ROIsignals.text differences

Submitted by cat on Thu, 12/13/2018 - 19:40

Dear Experts,
I re-ran 2 subjects through DPABI using the same parameters and ROIs that I used for the same two people that I ran as part of a larger group ( n=50).
When I compare the output folders FunImgARCFWS_ROISIGNALS/ROISIGNALS_subjectx of the same person, the ROI time courses look very different, even though I used the same parameters as before.
Would you know why that is? I can only imaging that in my prior analysis these two subjects were run as part of a different group? Does the ROISignals .text output gets normalized according to the included subjects?

error when use Permutation test

Submitted by mayer on Thu, 12/13/2018 - 06:23

严老师好，

我这用dpabi做FC与行为学的相关的时候出现了如下报错，应该如何处理？

我使用的dpabi版本是V3.1， MATLAB2017，WINDOWS 系统。

 

ANOVA报错与Mask问题

Submitted by HugoY on Tue, 12/11/2018 - 13:46
1. 使用Dpabi中的统计分析进行ANOVA分析比较三组的FC差异
事后比较选择Tukey检定，正常的F.nii可以正常生成，但是事后比较出现付图的报错
后来有试着运行其他事后比较，Tukey和雪费都会报错但是Dunnet和Bonferroni可以运行，请问是下列报错是哪些地方操作错误了呢？
2.教学影片中有提到如果欲使用AlphaSim或是GRF等校正，需要选取MASK档案，但是我不知道这个Mask档案应该在哪个目录下，Masks目录下的AllresampledBrainMask没有任何内容又是正常的吗？
感谢老师的答覆

 

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Error using y_ExtractROISignal (line 239)

Submitted by veeus18 on Sat, 12/08/2018 - 13:55
Hell0,
I have 3 groups of subjects, and I am using a ROIList.mat file for all 3 groups. It works without issues for 2 groups. For the third, it gives below error. What does it mean?-
 
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Error using y_ExtractROISignal (line 239)
An UndefinedFunction error was thrown on the workers for 'MaskROILabel'.  This might be because the file

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the criterion of remaining subjects,afeter scrubbing

Submitted by HermioneLin on Fri, 12/07/2018 - 07:03

Dear all,

I want to use the data preprocessed to do the later analysis such as build a martix. But some subjects has limited timeseries when I finished scrubbing,which may result in a strange result. So I want to know how many time timeseries left in a subject( for my case ,the total time series are 180,first 5 were revoved at the very beginning part) is enough for further analysis.

Sincerely,

Lin

 

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error

Submitted by nour on Sun, 12/02/2018 - 23:06

Dear YAN Chao-Gan

i analyse rfMRI using DPARSF version 4.3 advanced

i get  the following error when Bet begin 

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something wrong when using mutiple comparation correction in dpabi

Submitted by HermioneLin on Fri, 11/30/2018 - 04:30

Dear all, 

I have troubling in using  the mutiple  comparation correction in stastical analysis in dpabi .  1.The pic1 shows the error when I was using PT with TECE . It still happened when I changed to the latest version of dpabi or using windows10 or mac system.

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cannot use surface view with brainnet viewer

Submitted by HermioneLin on Thu, 11/29/2018 - 15:25

Dear all:

          when  I use viewer in dpabi , i  cannot use surface view with brainnet viewer because it showed there was some mistakes.  Thanks for anyone can tell me what was wrong. Details are in the pic.

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conj'c intemed golbal格式什么意思

Submitted by miaomiaolong on Thu, 11/29/2018 - 02:08

https://ibb.co/37RMNvp

是在显示result的时候,同时选择几个contrast的时候的选项

[img]https://i.ibb.co/pxhRzQf/Image-tmp.png[/img]

对于我的三个f test,选择conjunction的时候是没有显著性差异体素的,但是选择intermed和global的时候是有的,但是不知道什么意思

下面是选择global的时候的效果图

[img]https://i.ibb.co/B3srMR8/Image-tmp.png[/img]

 

 

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Normalize by dartel，what is the standard template？can i change it？

Submitted by lucy on Tue, 11/27/2018 - 04:10

Hello pro Yan，

The article with data processed by dparsf was returned by the editor

And the reviewer asked us to re-do a rest-state analysis，and set the voxel size into 2*2*2 mm（3*3*3 previous by default） to map our activation analysis

Bur the results were strange and unreasonable

So i checked the normalize results，it seemed that i can not change the voxel size

Here are two normalized results for  one identical participate

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