some problems while using REST

      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.

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