January 2015

DPARSF_V2.3_130615在Realign时出现error

老师您好,我在用DPARSF_V2.3_130615处理一个被试时,在Realign遇到error如下:
/-------------------------------------------------------------------------------------------

Running "Realign: Estimate & Reslice"
 
Printing Graphics Windows to
D:\MATLAB\R2012a\mywork\fmri\Analysis\FunImg\spm_2015Jan31.ps
 

GCA结果会因为ROI的增减有变化

老师:
您好!最近本人在做GCA时采用DMN网络ROI的结果与加入一些其他脑区的结果有一些差异,不知道这样的结果是否正确,在计算原理上是不是应该不受脑区的个数而影响?并且在GCA的结果中经过t检验后,其负值的意义是什么?
期待您的指导回答,十分感谢!

关于时间序列的聚类计算

各位老师:
 
      如果我想对提取的时间序列做一些聚类计算的话,用哪一种算法比较合适呢?多谢指教

REST Functional connectivity

 Dear Experts

By Performing ROI wise functional connectivity ,my result matrix consists of signed elements. Since functional connectivity is a connectivity without directions ,could some one please explain this to me?

what do ROIsignals usually look like?

    It's my first time deal with ROIsignals, they are provided by my partner, but to my suprise, the signals have little variance, the time series look like 100 101 99 101 102 ,something like that, is that ordinary? or is there anything wrong?

请教MICA中sort components和identify components的使用

 使用MICA分解出了20个独立成分,请教各位如何使用sort component和identify component来挑选成分。
默认设置identify component时报错如下:

Idendentify components
??? Undefined function or variable 'dim'.
 
Error in ==> view_gui>ButtIdenComp_Callback at 898
[ICNOs]=nic_removeNoiseComponent(compNum,dim,outPrefix,threshold,zipFilePath,a);

this NifTi image includes an rotation transformation.You should reslice this data before attempting to overlay the image.

 Dear REST developers

After detrending and filtering my images with REST I encounter the following error as I want to open my resulted images
:
this NifTi image includes an rotation transformation.You should reslice this data before attempting to overlay the image.

Error message for DPARSF v3.1

 Dear Sir,

I repeatedly encountered a problem when using DPARSF 3.1 in Matlab 2013b with parallel computing.

The program appeared to stopped in early stage and show one of following messages. 

Any suggestions? Thanks

Error using DPARSFA_run>(parfor body) (line 572)

DynamicBC

 
Dear team

Is it possible to process a large number of participants using batch mode in DynamicBC?

Thanks

Peter

如何将原始T1上勾画的ROI配准到预处理好的功能像上

 老师你好,因为需要进行海马的体积分析,我在原始t1图像上勾画海马作为roi,但是我不知道如何将原始图上的roi和预处理好的图像进行配准。自己尝试过用spm的normalise,但是配准结果不好,与预处理的功能图配准不到一起。所以恳切想知道这种情况下我如何进行配准,具体步骤忘请教。谢谢!