DPABI/DPABISurf/DPARSF

questions about 'Normalize to Symmetric Template'

Submitted by yaqiong on

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?

How to calculate center coordinate of a mask

Submitted by yaosir on

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

Error in CWAS analysis; how to input a regressor file (txt)

Submitted by jwhnavy on

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

关于使用DPABI中的dparsf for monkey data

Submitted by zhoujun on

您好!

我目前正打算使用dparsf for monkey data来预处理我的猴子大脑静息态数据。请问dparsf for monkey 与 dparsf for human有什么区别呢,dparsf for monkey data在做normalize的时候是怎么进行的呢?是默认地使用dpabi中自带的猴子模板么?另外,我在初步使用该软件的时候报了错。我的数据有6个被试,每个被试各一个session,每个session336个时间点。数据整理,我是按照 工作目录/Sub_001/FunImg/XXX.nii 和 工作目录/Sub_001/TiImg/XXX.nii 来整理的。