Both MSP and LOR use the cortical mesh so they are restricted to the
grey matter in the same way. Perhaps because LOR is smoother you can
see it more clearly in that case.
On Thu, Nov 3, 2011 at 10:37 AM, Chris Brown
<[log in to unmask]> wrote:
> Dear all
> Just a brief question: Is it possible to restrict MSP source solutions for EEG to grey matter? Whenever I've attempted a LOR inversion, the solutions appear to be restricted to the grey matter folds of the cortex, but this doesn't appear to be the case for MSP. I was hoping this would be possible because an MSP solution I calculated keeps putting the source in the CSF neighbouring the expected cortical position of the source (no matter what other parameters I fiddle with). I wonder whether restriction to grey matter would solve this problem?
> Many thanks,