Dear all,
I was wondering is it possible to combine the results of multiple resting-state fMRI data sets with different imaging parameters (e.g. TR, number of repetitions, etc.) together?
The Biswal et al., PNAS, 2010 paper seems to be able to do so.
If I processed two groups of data with MELODIC and got 20 components from each group.
Any idea on how to bring these two together to get a group mean?
Group A, TR=3sec, 12 subjects
Group B, TR=2.5sec, 8 subjects
Since the IC may not match up, I cannot simply use the GLM group analysis.
And, because they have different TR, I cannot use dual regression to get the group mean.
Thanks in advance for any advice.
Best,
Hsiao-Ying (Monica)
|