001.mgz is used as the target. If you have other scanns in orig (eg, 002.mgz, 003.mg, etc), then those are aligned to 001.mgz, then all are averaged together.
doug
joel bruss wrote:
When FreeSurfer performs the average of 2 or more scans to create rawavg.mgz, is the 001.mgz used as the target to which all other scans are moved /averaged to or is there some between-space alignment amongst the scans?
-Joel
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