I use brainstorm (forward model) to simulate ear-EEG data.
In order to get a representation that is comparable to my actual ear-EEG recording, I have to re-reference with signal, i.e. I subtract the signal of the reference-electrode position from all other channels.
What is not clear to me yet for this forward model is the role of the DRL (driven right leg, of the amplifier). Do I have to account for that as well? In my setup DRL, REF and recording electrodes are all in close poximity to each other.