[Mne_analysis] Source space vs SourceEstimate morphing

Alexandre Gramfort alexandre.gramfort at inria.fr
Sat Mar 10 11:14:09 EST 2018
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This page explains morphing and averaging;
> https://martinos.org/mne/stable/manual/source_localization/morph.html#the-
> morphing-maps
> But is this "source space morphing" or "SourceEstimate morphing"? I don't
> understand the difference, which seems to be implied here:
> https://martinos.org/mne/stable/auto_examples/forward/
> plot_source_space_morphing.html

if you use  SourceEstimate morphing you make a source space for the
individual subject
you consider based on this cortex mesh. then you get a source estimate you
need to
transport / morph to a template brain eg fsaverage.

if you use source space morphing then you use the mapping between fsaverage
and the
subject to make a source space that has a definition in the fsaverage brain.
it makes subsequent source estimate morphing unecessary.

hope this helps
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