FWHM and radius
Hi everyone!!
I have a voxel size 2.5 2.5 4, how i set the FWHM and rmm in the REST alphasim?
Thank you!!!
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Hi everyone!!
I have a voxel size 2.5 2.5 4, how i set the FWHM and rmm in the REST alphasim?
Thank you!!!
老师:
您好!
我用DPARSFA对静息态的数据进行预处理,顺序是:SliceTiming-Realign-T1Segment-Nuisance Covariates Regression-Mormalize.遇到了两个问题:
1.我发现Nuisance Covariates Regression的时候生成的某些被试的白质、灰质、脑脊液、全脑信号mask的坐标位置与realign得到的图像的坐标位置有差异。如图(左侧为realignParameter文件夹内的图像,右侧为Masks中BrainMask图像,用MRIcro显示的同一坐标位置的截图):
如题所示,我完全是这方面的小白,现在想要提取一些参数作为区分AD和NL,我手上只有结构型的MRI,所以用spm,rest这类工具有点茫然
现在我先是 通过VBM预处理,就是按照范丰梅写的那个《VBM处理流程-PDF》来的,经过了normalizing和segmenting,其中有的部分因为spm8和spm5有不同,所以我除了针对AD的预处理是thorough cleanup之外其他都是默认选项,比如那个high-demensional DATREL模板,最后使用了FWHM[8 8 8]的高斯平滑。
然后我选择了smwrp1*.nii这些文件用spm进行了双样本t检验,操作仍是参照范丰梅写的那个《VBM处理流程-PDF》.
各位老师好,我想问一下在SPM中怎么做conjunction analysis?
Dear Experts
I'm trying to detrend a set of rest images using rest toolkit,however, the following error occurs:
Exception occured. (MATLAB:nonExistentField)
Reference to non-existent field 'mat'.
Dear Rest Experts
Hi
I would like to perform ROI wise (multivariate) coefficient based GCA. However, I do not know whether to set the order as "1" or "2"?
Secondly, what does the "order" represent?
Many thanks in advance.
Best,
mahsa
老师,
您好!我扫描的静息态数据是15分钟,不知道这个时间可不可以,是否时间太长?如果太长,扫描出来的数据该怎么使用?
应该先扫描结构像还是先扫描功能像,先后顺序是否会对数据结果产生影响?
谢谢,老师~
Philips3.0被试dicom数据拷出来后,在电脑上显示没有后缀,能否使用DPARSF.或者有其他方法转换?谢谢大家了。
Hey,
is it possible to calculate an averaged power spectrum of all BOLD-Signals in a region of interest?
Thanks,
Marius
Dear Experts
Hi
I am trying to find the path coefficients between eight DMN regions and my study onsists of 8 patients and 8 controls.By following the GCA tutorial I put my subjects in a folder with "subject001,subject002..." subfolders,however, as I wanted to add the data directory the following error showed up: