相关分析后的平滑和过低

Submitted by AlRay on Mon, 08/06/2018 - 08:52

严老师您好：

预处理时设置的平滑和为FWHM[4 4 4], 相关分析后结果图像的平滑和只有5，感觉比较奇怪，可能出错了，请问可能是什么原因导致的？

谢谢老师！

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DPABI重复测量方差分析时，在permutation test或后续的多重比较校正时报错

Submitted by nangongjingtian on Thu, 08/02/2018 - 13:28

各位老师们：

          你们好！最近在使用DPABI进行单因素重复测量方差分析（ANCOVA,Repeated Measures）时，可以生成F图，但在点击DPABI重复测量方差分析的permutation test，或用生成的F图放到viewer后，做后续的多重比较校正(GRF)时均报错，报错信息如下：

Convert F to Z...

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voxel-wsie correlation between two images

Submitted by nomad on Wed, 08/01/2018 - 19:41

Hi,

 I am trying to calculate the correlation between two image datasets and perform the permutation test. Is it possible to calculate the voxel-wise correlation via DPABI?

Thanks,

Haitao 

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DPABI V3.1 and DPARSF V4.4 are released!

Submitted by YAN Chao-Gan on Wed, 08/01/2018 - 05:00
Dear colleagues,
 
We are pleased to announce the release of DPABI V3.1 and DPARSF V4.4.
 
New features of DPABI_V3.1_180801 and DPARSF_V4.4_180801 (download at http://rfmri.org/dpabi):
 
1. Added a prompt of "Congratulations, the running of DPARSFA is done!!! :)" when DPARSF finishes its processing.
 

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其它定义ROI提取出错

Submitted by keke on Tue, 07/31/2018 - 08:24

按照教学视频，在Utilities模块ROI signal extracter中添加患者组zVMHC文件，define ROI选择了view模式时保存下来的的single cluster的T2.nni文件，然后提取出现如下错误，请老师帮忙看一下

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Realignment error

Submitted by jLee on Fri, 07/27/2018 - 07:11

Dear

I have a problem with realingment error that is driving me crazy.

The error that occurred is as follows.

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用DPABI做动态功能连接中遇到的一个问题

Submitted by Biophilia_Fu on Wed, 07/25/2018 - 15:47

最近用使用严老师的DPABI中的TDA模块做了动态功能连接，在查阅了文献后发现很多文献在fisher-z变换后将z值划分为（<-0.5）（-0.5～-0.25）（-0.25～0.25）（0.25-0.5）（>0.5）这5段以验证sliding window对组水平差异的影响。请问在DBAPI的工具中能实现吗？

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Normalize by using T1 templates

Submitted by vascosadiogo on Tue, 07/24/2018 - 13:54

Hello all,

I am using DPARSF to preprocess some rsfMRI data for use in a machine learning algorithm. I am worried about the use of DARTEL because of overfitting resulting from the creation of a template based on all subjects. I was thinking of using DARTEL but with a template derived from an independent sample of 555 healthy control subjects of the IXI-database. I already have this template. To use, I believe I would need the hidden option mentioned in the videos "Normalize by using T1 templates". How could I go about using this option?

 

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Turning of zipping to nii.gz and unpacking with gunzip

Submitted by David on Mon, 07/23/2018 - 17:56

Hi,

since gunzip with Matlab is ultra slow I would like to turn of zipping the files when using the T1 DICOM to Nifti and EPI DICOM to Nifti option. How is this possible?

Thank you in advance

 

David

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Error in generating group mask

Submitted by Shatgul on Sun, 07/22/2018 - 13:28

Hello, 

I have a question regarding to generating a group mask under quality contral. I wanted to generate a group mask for later use in paired t-test analysis, and this step is very important in this analysis. 

I watched the online courses to find out how the working directory is set up and tried the same way that was in the vedio:

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