. Author manuscript; available in PMC: 2016 Sep 12.

Published in final edited form as: Clin Neurophysiol. 2014 Apr 13;126(1):110–120. doi: 10.1016/j.clinph.2014.04.003

Table 1.

Estimated spatial resolution of recorded potentials or magnetic fields generated by cortical sources.

Recording method	Typical spatial resolution (mm)
Microelectrode of radius ξ	⩾ξ
LFP	0.1–1
ECoG	2–5
Intra-skull recording	5–10
Untransformed EEG	50–70
Untransformed MEG	50–70
High resolution EEG	20–30
High resolution MEG	Unknown