coordinates outside brain volume

[Sreenivasan Rajamoni Nadar]

Dear Users,

I am using the FieldTrip to extract single trial source signals using the
CTF coordinates. Although I have been successful but for some coordinates
the Fieldtrip is giving error as coordinates are outside the brain volume.
The same coordinates are very much inside brain volume and the CTF software
does not report error to extract the virtual source signals. An expert
suggested to "inflate" the sphere model so that coordinates are within brain
volume to do the source estimation. Anybody has a better idea to deal the
problem in FieldTrip?

Thank you

Vasan

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