coordinates outside brain volume

[Rajamoni Nadar, Sreenivasan (NIH/NIMH) [E]]

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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