Dear Dr.Yan,
May I ask a simple but sounds stupid question? I know it should do reho before smoothing, but is it possible that calculate alff before smoothing as well? Why?
best
fish
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a network for supporting resting-state fMRI related studies.
Of course you can calculate
Of course you can calculate ALFF before smoothing.
The downside of doing so is that smoothing before ALFF calculation could improve SNR.