April 2013

Brodmann atlas - saving only one area of interest using rest-viewer?

Submitted by kvoigt on Sun, 04/28/2013 - 14:44

 Hi,
is it possible to create a template of only one of the brodmann area using rest-viewer and the brodmann atlas provided by rest?
I tried it already, but when i select "save current cluster" it always ends up with saving areas.
thanks very much in advance!

Forums: 
Resting-state fMRI topics

mask出错了，能怎么改正么

Submitted by chunhuichen on Fri, 04/26/2013 - 21:12

各位老师们好！

最近处理的一批数据，其中有些被试是头部上下颠倒的，于是用fsl翻转过来并在fslview里看着正常后，后用DEPARSFA处理。结果是，那些头部曾经颠倒了的被试result都为空，而其他没有颠倒的被试都挺正常的，看PicturesForChkNormalization也是那些颠倒的被试normalize没配齐。

我的处理步骤是，slice timing, realign, coregister, Newsegment+DARTEL, Nuisance covaraite regression (poly trend 1, Fiston 24, Global signal, WM signal, CSF signal), Warp Masks into individual space, ALFF/ReHo等，normalize， smooth。 本来想贴图上来的，可能是网速慢贴不上，只好这么简单描述了。

然后我就逐个文件去检查，发现到FunImgARCF看着都正常，头部颠倒的和没有颠倒的被试都差不多，T1ImgNewSegment 灰白质分割也是正常的，但Masks 和Results里都是空的。

Forums: 
Resting-state fMRI topics

有关使用rest计算degree centrality结果输出的问题

Submitted by yangshuo on Fri, 04/26/2013 - 11:29

严老师您好，我做了30个正常儿童中心度，在rest计算DC的界面有两个输出结果分别是output directory for weighted sum和output directory for binarize sum（如下图），请问我要用这两个输出文件分别是什么意思，我要下一步进行统计计算用哪个文件夹。
下面是我分别用binarize和weighted进行单样本T检验的结果，感觉稍微有些不一样，请严老师指导，谢谢。

Forums: 
Resting-state fMRI topics

error using dparsf

Submitted by gopsahu on Thu, 04/25/2013 - 16:29

Hello
I used Dparsf for resting state fmri images, everything was done according to the manaul, but i receive this error again and again, how can i solve it

??? Error using ==> parallel_function at 598
Error in ==> DPARSFA_run>(parfor body) at 198
Index exceeds matrix dimensions.

Error in ==> DPARSFA_run at 194

Forums: 
Resting-state fMRI topics

I have a image file which is the result of a Reho analysis. I want to make a mask of the activated region. How can I do it?

Submitted by gopsahu on Wed, 04/24/2013 - 22:17

I want to make mask of activated regions or of unactivated regions from the rehomap.
how can i further proceed

Forums: 
Resting-state fMRI topics

no result after performing one sample t-test for the mrehomap

Submitted by gopsahu on Wed, 04/24/2013 - 22:10

hi
i got two rehomap after performing reho analysis. after that i used the mreho map for statistical analysis.
there was no error and t-test was completed sucessfully, but when i overlayed it on ch2 template image. it was just a blank image(like plain colour)

Forums: 
Resting-state fMRI topics