老师您好，

1 请问在DPASFA中用DownloadedReorientMats和Apply mats后，workdictionary里就不会生成QC和ReorientMats文件，对吗？

我的resting data 预处理时先是手动调整，发现workdictionary中会生成QC和ReorientMats文件，但是换成Apply Mats后workdictionary就没有这两个文件了。

2 如果某个被试的结构像不清晰，但是静息态数据头动在2mm范围以内，该被试的静息态数据还可以用吗？

谢谢老师。

Hi DPARSF experts,

I have two questions concerning the filtering step of preprocessing. When I run filtering before normalization, the origin coordinates are moved away from the AC for some of my datasets (when I check "origin" with SPM's "Display" button)--which negatively impacts the ensuing steps. I could still do filtering after the normalization but: (1) does this make sense? and (2) why could this change in the origin be happening? I'm using DPARSFA V4.5_190725 on Matlab R2018b.

Thank you in advance,

Adriana

Hi you all,

I am using Matlab Version 2019a, and GraphVar 2.02. I am calculating group comparisons with 4 subgroups that arise when combining 2 factors (factor A and B) so that I am calculating e.g., A0 + B0 vs. A1 + B0. Hence, I have 6 comparisons in total. My total n is 211, but my subgroups have an n of 60, 47, 24, and 80, respectively.

Upon analyzing the output, I encountered two difficulties:

严老师你好，在进行猴子的功能连接时出现报错如下图所示:

请问是没有配准么，怎么解决，感谢老师

各位老师，你们好：

我在用DPARSF进行预处理的时候遇到了一个问题：

实验数据大部分被试的slice number = 33，TR = 2s，然而在数据中存在一小部分被试的slice number = 38，TR = 2.303s，我想请问一下，这样该怎么处理呢？我可以将这个数据按照slice number = 33，TR = 2s和slice number = 38，TR = 2.303s分为两组然后分开进行slice timing步骤的处理，再将时间校正后的两组数据合起来进行余下的预处理步骤吗？还是说两组数据所有的预处理步骤都需要分开做呢？想请问一下这两种方式哪个是正确的呢？

严老师您好，我在用DPARSF4.3（DPABI）进行猴子数据预处理时出现报错。已经生成了T1ImgSegment文件夹，准备生成T1ImgSegmentCovs文件夹时（即已经完成分割后准备进行协变量去除时）报错。报错如下，望您指正：

Dear DPABI community,

I have some questions regarding temporal dynamic analysis. I have two groups of subjects, AD patients and healthy controls. I want to compare the patterns of dynamic r-fMRI indices and and their concordance.

Dear All,

The R-fMRI Course V2.1