DPABI/DPABISurf/DPARSF

Hello Dr Yan

please i want to know how to rank voxel in ReHO calculations (rank according to what??)?

Thank for your effort.

Hi all:

    I am working on a resting state data set of mice. I have followed the tutorial of rodents data processing. My question is after I augmented each voxel by 10 what is the smoothing kernel I should use?. I understand it is supposed to be 2-3 times the size of the voxel, so should I consider the size of the voxel before or after the augmentation?.

for example: the original size of the voxel was 0.5X0.5X0.5 and after augmentation it became 5X5X5, so the kernel should be 1X1 or 10X10.

Thank you.

Amr

Hi!

I am doing an analyses on two groups of subjects with data that was acquired with different scanning parameters:

1. TR 2.3, 37 slices, 3x3x3

2. TR 2.3, 34 slices, 4x4x4

What would be the best common voxel size for the analyses? 

To what point should I preprocess the data separately?

Thank you for any hepl in advance,

Emilia Cheladze

Hi Chaogan,

I have a couple of questions about 'Normalize to Symmetric Template' in DPARSFA to ask you for help. 

1) Based on Zuo et al., 2010, normalization to symmetrica template was implimented after all the preprocessing steps but before VMHC analysis. I was wondering, does it matter to perform it at different steps, say after standard normalization or after smoothing?

Dear Chao-Gan,

I am recently planning to conduct a coodinate-based meta-analysis, which requires center coodinates of the seed regions. Since some studies used pre-defined masks (such as a region from AAL atlas), center coodinates were not directly provided. I was wondering whether I could calculate center coordinate of a mask through DPABI or some other ways?

Best,

Vincent

Dear Dr. Yan,

Thank you for developing a wonderful toolbox to analyze resting-state fMRI data. I'd like to use CWAS implemented in DPARSFA for my project. However, when conducting CWAS with my data, I came across an error.  I've used resliced time-series data and mask images as the voxel size of isotropic 4 mm. I guess the error was caused by a regressor file I used. I plan to perform the CWAS analysis with IQ or age (i.e., continuous variable) like Shehzad et al. (2014)'s study

 Matlab 2015b,  Win10 , SPM12,DPABI_V2.1_160415,

 DPARSF 4.1 basic edition

Hi, I'm Seungnam.

I want to use each patient's  RO I file that is predefined using each subject T1 image.

How can I do?  use the ROI file using  Mask file at Define ROI-> Define Other ROI-> Mask+

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