Dear Brainstorm group
Thanks to all of you for useful guidance. I am using gain matrix (Normal constrained) using boundary element method model to simulate EEG. My problem is the gain enhances sources instead of attenuating them. For instance, I activated two sinusoids in two different location on the cortex and I get enhancement over all frequencies other than frequency of the sinusoids on the scalp. What are the conditions for leadfield matrix that I need to note?
Thanks
Ayda