DPABI/DPABISurf/DPARSF

Dear Dr Yan

         I have several problem which confuse me .

         1. How to set the thr in the image caclator. I gonna set a mask use the expression, (i1<thr)+(i2<thr). I have no idea about the definition of thr. I had ever used the number of Voxels(alpha sim correction) and thr in Viewer. But it doesn't work.

        2.It confuse me that there are many noises in the blank region. 

Dear Dr.Yan,

May I ask a simple but sounds stupid question? I know it should do reho before smoothing, but is it possible that calculate alff before smoothing as well? Why?

best

fish

Dear experts

In a statistcal analysis of DPABI, a default setting of mixed effect analysis is 2X2. 

What if I want to use mixed effect analysis of DPABI with factors greater than 2? 

Best, Dong Woo 

Dear DPARSFA list,

I am wondering how I can run DPARSFA with sun grid engine (SGE). Our server does not allow to run parallel processing so I was wondering if you could give advice on how I can run DPARSFA with SGE. 

Many thanks for your help.

Best wishes,

Hi there,

While attempting to run the preprocessing on the Demo Data from the fMRI course per the video instructions, I ran into a few issues. Upon hitting run, MatLab says it is launching a parallel pool to run my processing in, but also MatLab says no jobs are currently running. Additionally, it says that the parallel pool is busy, and this continues for hours, over 9 that is. I can't seem to find the file either of the altered data, so perhaps the process is just incomplete. What could be a potential problem? 

Thanks,

Zoe Dittman

Michigan State University

Hi,

I'm trying to set up an ANCOVA with covariates.  I have FD as one covarate and 4 groups (numbered 1, 2,3,4)

How do I set up the analysis.  Can I load in an FD.txt file and a file with groups listed as 1-4, or do I make a multicolumn file with 5 columns, or do I need a separate file for each group, as well as 1 for FD?  Also, how will I know from the output that the covariate has been removed from the data prior to the group F test being computed?

Thanks,

Matt

Hi, 

I'm trying to calculate ReHo on residuals images obtained after GLM analysis ("simulate" resting-state). 

Basically I just want to regress signal from WM and CSF, Bandpass filter, detrend and finally calculate ReHo. I have 2 questions

Hi Yan,

Hi, all.

I  run the  two-sample T test between patients and control groups by DPABI and get the T map. I would like to perform the GRF correction.

I found some discussion about GRF correction, which suggested that the T map should be converted into Z  map before GRF correction.

Hence, if I use the DPABI to perform the GRF correction, should I also use the  "y_TFRtoZ.m"  to convert the T map into Z map? And then perform the GRF correction?

Best wishes,

Thanks in advance for your kind help.