I have smoothed my normalised images to 4mm and looked at data for
individuals. Now I wish to go through to a second level, random effects,
analysis.
1) Can I simply smooth the con* images before entering them into the second
level?
2) Suppose it is OK to smooth the con* images by X mm. Is it true that
the 'total' smoothing would be the root of 4*4 + X*X ?
3) Finally, what is the current consensus on the appropriate amount
of 'total' smoothing, when the areas of interest are in DLPFC?
Many thanks,
Tony
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