Submitted by sunshine on Thu, 10/22/2009 - 10:58 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？ 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 Forums Discuss Log in or register to post comments
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
Re
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.