[Eeglablist] EEG questions

[Borna Noureddin]

Hi,

I'm really sorry to post to this group, but I've been playing with EEGLAB 
and - being new to EEG - have some basic dumb questions.  If anyone could 
point me in the right direction, I'd appreciate it.

- Is there any consensus on the spatial resolution of a typical scalp 
electrode?  What is the smallest volume whose activity one can expect to 
represent with scalp EEG?  How deep a structure can contribute?  I'm not 
asking about the resolution of any particular algorithm like ICA, but the 
physical limits of scalp-recorded EEG.

- Has there been any work done on the capacitive effects with scalp EEG, 
both in terms of head models and electrodes?

Thank you in advance to whoever may have an answer or a place to look, and 
apologies again if it's an inappropriate post.

Regards,
Borna Noureddin, M.A.Sc.