ZangYF Group's CVs

提取协变量出错

Submitted by zhangwc on Wed, 03/05/2014 - 21:28

论坛里各位老师和同学，我是静息态数据处理的新手，在医院采集了一批病人数据，准备做静息态处理，使用的机器是飞利浦1.5T，采集到的数据并不是每个TR一个文件，而是一层一个文件，文件命名不规范，我们能够顺利的完成从格式转换到smooth的所有预处理，但是使用rest做功能连接提取协变量无法进行下去。我们猜测可能是数据的原因，报错信息贴在下面，我不是很明白这是什么意思，向论坛里各位请教。

??? Subscripted assignment dimension mismatch.

Error in ==> rest_to4d at 94
                    AllVolume(:,:,:,x) = (theOneTimePoint);

Error in ==> rest_ExtractROITC at 20
[AllVolume,VoxelSize,theImgFileList, Header,nVolumn] =rest_to4d(ADataDir);

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Resting-state fMRI topics

How to determine REST AlphaSim parameters properly

Submitted by geb_UoM on Fri, 03/07/2014 - 21:44

Dear Experts,

I have read a lot of the supporting documentation related to REST AlphaSim, along with many posts in the online forum; and although I feel I have a good understanding of the procedure I have two outstanding questions which my reading has not answered. I'd really appreciate your help in these matters.

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Other

reorient

Submitted by Chen0075 on Sat, 03/08/2014 - 14:25

 Hi,

I downloaded T1 data from OASIS and tried to perform VBM analysis. But I found that T1-images are with "wrong" x, y, z direction (see attachment). How can I convert them to the conventional direction (like the template in MRIcrion). 

Thanks!

Forums: 
Resting-state fMRI topics

DPARSFA Error after normalizing

Submitted by evast001 on Thu, 03/13/2014 - 17:06

Hi everyone

I'm preprocessing my data and have encountered an error message. It seems to happen right after the normalizing step and the matlab command window says that normalization is "Done" (however, there is no "W"-folder available in my directory, which is strange). This is what the error message looks like:

Extracting ROI signals...

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Resting-state fMRI topics
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