严老师，您好！
我在数据预处理中"Nuisance Covariates Regression"去除脑脊液、白质，所以通过"T1 Coreg to Fun"和“New Segment+DARTEL”这一步生成了灰质、白质、脑脊液的文件数据。
后面在做VBM中，通过dpabi默认的步骤"Reorient T1*"和“New Segment+DARTEL”也同样生成了，灰质、白质、脑脊液的数据文件。
请问这里第一步一个是做"T1 Coreg to Fun"，一个是做"Reorient T1*"，那在“New Segment+DARTEL”生成的灰质、白质、脑脊液数据文件是相同的吗？
谢谢！
Zhe
严老师您好：
麻烦老师您了。还有我再问一下，关于ROISignal值，如果是90脑区ALL模板，每个时间点的每一个脑区的的信号值是该脑区所有体素信号值的平均值吗？因为我看过文本，比如，230个时间点的，采用90脑区的模板，最后我发现文本里面的矩阵为230*90,。我理解为它取了每个脑区的信号平均值。hello!
professor Yan, when i processed my data with dparsfa based on matlab2013a, spm12, an error always occured.
but i 'm sure that i had used same parameters processed data successfully once a time
just with smooth value change from 4mm to 6mm
here are the infor that shoewed in matlab :
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按教程我在overlay中添加Yeo2011_17Networks_MNI152_FreeSurferConformed1mm_LiberalMask.nii.gz以及在Load colorbar from MAT中载入Yeo2011_7Networks_Colormap_ForDPABI等文件后，点击surface view with BrainNet viewer按钮，matlab运行框显示错误,我看不到我的图像结果（说明：已事先安装好brainnet viewer):
尊敬的严博士，我在用统计模块进行两个独立样本T检验时，在添加患者组和对照组后，还添加了Mean FD，性别，年龄，教育年限等协变量，但是我发现在点Run之后，并没有运行协变量，得到结果和我没有添加协变量时是一样的，我怀疑是我编辑的协变量文件不正确。例如我建立一个记事本文件（OCD.txt）,假如我有13个被试，我就编辑成13行，4列；每一行从左到右以此是：性别，年龄，教育年限，Mean FD；打开后内容如下：
结果如下：DLH 0.091699 voxels^-3 before correcting for temporal DOF
FWHMx = 3.744741 voxels
FWHMy = 3.687451 voxels
FWHMz = 3.645997 voxels
FWHMx = 11.234224 mm
FWHMy = 11.062353 mm
FWHMz = 10.937990 mm
DLH = 0.092841
VOLUME = 174972
RESELS = 50.345928
尊敬的严博士，关于这些结果我不是很明白，我想了解一下上面这些结果分别表示什么意思？感谢亲爱的严博士
Dear Dr. Yan,
I encountered a problem while doing Mixed Effect Analysis. I wanted to add covariates (age, gender and handness). But the problem is that the covariates are the same for both condition 1 and condition 2.
I added as
group1_cov.txt
group1_cov.txt
group2_cov.txt
group2_cov.txt
Then Dpabi ran for hours and gave weired results. I also tried to name the covariates differently but it didn't work either. I wonder what is the proper way to add covariates in Mixed Effect Analysis.
Thank you!
Best Regards,
Mengjiao