DPABI/DPABISurf/DPARSF

How can I extract grey matter voxel signal?

Submitted by Eunji Jun on

Hi, I have 2 questions.

First, How can I extract only grey matter voxel signal?

I extracted 116 ROI region signal applied by AAL mask, but I need voxel-wise information.

I knew that functional information comes from grey matter, so I'm gonna extract all voxel signals in grey matter.

 

Second, I don't know how I can start the point where I have done processing so that I shouldn't do again what I had done.

I tried to uncheck the menu which I have done, but I don't know how I can write 'starting working directory'.

Clusters

Submitted by Ali on

Dear Dr YAN

please i want to read about clusters,i need to know every thing about(cluter size ,peak in cluster and custer report)

and i have question if i save all cluter does the cluter report return all activated regions for all slices?

thanks for your help.

Error at the Automask Step

Submitted by bmalivoire on

Hi! I am getting the following error at the automask step and I am wondering how to proceed?

 

Reading images from "____" etc.

Fixed Clip level = 1507.574839

Used gradual clip level = 1325.819201 ... 1628.431869

Number voxel above clip level = 27351;

Clustering voxels...

??? Undefined function or method 'bwlabeln' for input arguments of type 'double'.

 

Error in ==> w_Automask>w_mask_clust at 306

[L , num]=bwlabeln(mask , RMM);

 

Error in ==> w_Automask at 58

mask = w_mask_clust(mask);

Dpabi features and regions

Submitted by Ali on

Dear Dr.YAN

first i got these features(ALFF.fALFF,ReHO and VMHC)

I did tow sample ttest for 70patient and 70 control using  depabi and got the statistical map as .nii pecture ,then i used depabi viewer to show the significant regions for this map with template AAL, my question how  can i map these features to these regions and how can i find  all significant regions (regions affected by these features) for all slices.

Thanks for your help.

Statistical analysis: which directory to choose

Submitted by cgwatson on
Hello, I would like to do statistical analysis (two groups), but I am unsure which directory to select. If I select any of the "Results" directories (for example, Functional Connectivity), it chooses *all* images in the directory. However, there are (I think) 3 images per subject. How can I choose only the relevant ones?

Do the ROI templates apply to process monkey data In DPABI?

Submitted by zhoujun on

Hi,

    Recentlty, I have been processing my monkey data in DPABI. According to template paremetes, I do not execute brain extraction and nusiance covariates regression, due to there were  error in bet and nusiance covariates regression will lead to a bad result.

   I have some questions about monkey data processing,