Submitted by sunshine on Thu, 10/22/2009 - 18:58 我想用rest中的功能连接分析我的静息态数据，在预处理时需要做高斯平滑，我查了一些文献在高斯核的选择上有选择8、6、4的，想向各位老师请教下做静息态分析时一般选择多少比较合适？我之前用rest中的reho做过分析，里面有一步是选择mask，我选择的是rest中mask中的Brainmask。想请教下这个Brainmask是怎么来的？是在MNI空间下的吗？ Log in or register to post comments 7120 reads Submitted by YAN Chao-Gan on Thu, 10/22/2009 - 19:32 Permalink Re Hi! For myself, I usually use 4 mm. It's a widely discussed issue and should be determined by your own case. The default brain mask was the SPM5 apriori mask (brainmask.nii) thresholded at 50% and then resampled to 3X3X3. Thus it's in the MNI space. Log in or register to post comments
Submitted by YAN Chao-Gan on Thu, 10/22/2009 - 19:32 Permalink Re Hi! For myself, I usually use 4 mm. It's a widely discussed issue and should be determined by your own case. The default brain mask was the SPM5 apriori mask (brainmask.nii) thresholded at 50% and then resampled to 3X3X3. Thus it's in the MNI space. Log in or register to post comments
Submitted by YAN Chao-Gan on Thu, 10/22/2009 - 19:32 Permalink
Re
Hi!
For myself, I usually use 4 mm. It's a widely discussed issue and should be determined by your own case.
The default brain mask was the SPM5 apriori mask (brainmask.nii) thresholded at 50% and then resampled to 3X3X3. Thus it's in the MNI space.