Dear Dr.Yan,

 After I using xjview to save a ROI as a mask in two-sample t-test, I tried to use this mask to do voxel wise functional connectivity with Rest, unfortunately it showed error message.

The error Dialog is

Exception occured: Error using sprintf.

two groups, each have 2 subjects, so i do two-sample t-test. the text covariates include age, gender, temperature.  it report error,so is the text covariates file right? how to put the data?

Hi,

I'm trying to calculate a voxelwise connectivity measure which is not included in DPABI and I was wondering if it is possible to "harness" the voxelwise fc functions of DPABI somehow? In other words I want to just replace the part where the functional voxelwise connectivity is calculated by a function I wrote myself but still use the very handy rest of the DPABI-functions like reading the masks, creating z-maps,  and so forth :). Is this possible without major changes of the code somehow?

Dear Chaogan,

I need some help from you to response the comments from the reviewer. In the analysis, I used degree centrality to measure the developmental changes in hubs with age, but the reviewer questioned it, and proposed questions like 'Why have the authors used only degree centrality as the measure to identify hubs ? Are the results robust against other graph centrality measures such as the  betweenness centrality ?'

Could you please give me some suggestion on how to response it? Thanks so much.

Best,

Yaqiong

rest 中 statistical analysis 中做anova分析，需要add 3组数据，一开始把3组被试原始数据放在一个FunRaw文件夹中，最后得到一个result文件夹，所有被试的ReHo放在一个文件夹中。不知道该怎么得到3组数据？求指教

尝试1：把3组被试的ReHo分别放在不同文件夹，结果只能做得到一个组的ReHo-1，做另两组没有看到结果文件，但在command window中看到确实运行计算了，试了几次还是不行。

i put rar data in FunRaw file, process raw data, and get one results file containing subjects of 3 conditions. i need to add 3 groups in Add Group Images, how to do the anova for one results file? if i need to divide 3 FunRAW files and process seperately?

  dear experts：

参数： 运行环境matlab2013a，spm8update ，试过spm12update, spm8 ,spm12; 也试过matlab2010a,都不能run。

Q1：如果把slice timing 这一步不勾选，则能够运行到normalize to MNI space，why? 

Q2:运行到normalize to MNI space后没有报错，也不继续，怎么没有接着smooth，why？

谢谢~

time points：240        TR:2.2    SLICE number：36     slice order:[1:2:35,2:2:36] (不太确定）   reference frame 不知道没填   voxel size:3.4x3.4x3   其他默认值，报错内容如下。

Hi, I wonder to know is there any manual \ppt\video  for software GRETNA? I am a medical school student and going to analyze the patients' functional brain networks of small world properities  with GRETNA. Manuals downloaded from the website of "NITRC" were too simple for me and i still could not know how to run it. It is difficult but i have to do this for my graduation. Besides that, i want to know is there any other software to analyze small world network for a beginner? Thank you very much! I will appreciate for your help!

Hi,

I have a group of 90 test subjects and I calculated FC for the left Amygdala. I used the DPABI statistical toolbox and calculated a one-sample t-test for the FC zmaps for the ROI with base 0. The results show very high t-values up to 40 in the seed region itself and up to 20 in other regions (see attached picture). I cannot correct for multiple comparison because any voxel with a t-value that high will be significant even when using FDR. I'm not sure if this is correct or if I did something wrong?

Any helpful comments appreciated