[FieldTrip] why are grid points located outside the brain?

Balderston, Nicholas (NIH/NIMH) [F] nicholas.balderston at nih.gov
Wed Apr 20 23:27:00 CEST 2016

Dear all,

Thanks for the question Maris, I have been wondering the same.

Along those lines, I was wondering if it is appropriate to scale the resulting beamformer grids to match the size of the MNI template after the fact?

From: Maris Skujevskis [icelandhouse at gmail.com]
Sent: Wednesday, April 20, 2016 11:11 AM
To: fieldtrip at science.ru.nl
Subject: [FieldTrip] why are grid points located outside the brain?

Dear Fieldtrip users,

Can someone please explain the reason why in the tutorial http://www.fieldtriptoolbox.org/tutorial/sourcemodel<redir.aspx?REF=LS5FarOkwP8TA2JeL7GD9rSHEi2JYy_dxSVgVGLmjLdHy0UjYmnTCAFodHRwOi8vd3d3LmZpZWxkdHJpcHRvb2xib3gub3JnL3R1dG9yaWFsL3NvdXJjZW1vZGVs> (or in general, for that matter) the outer layer of grid points of the source model lie outside the brain though they are defined as being inside?

This is what I am refering to:

According to my naive understanding, this means that in this model the potential neural sources may also lie outside the brain, which makes no sense. Clearly, I am missing something here...



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20160420/19b854ff/attachment-0002.html>

More information about the fieldtrip mailing list