Original thread: http://neuroimage.usc.edu/forums/t/doubt-about-current-density-units-pa-m-or-pa-m2
If you are confused by the unit (Ampere - Meter) of the current density computed in BrainStorm or any other localization algorithm here is a very clear explanation given by John Mosher:
...
*_Hence for now we keep it simple and report units of A-m, since the conversion to A/m||2 would only be another layer of modeling complexity best left to the user's own interpretations. The summary rough calculation given above will put you in the right order of magnitude.
_*Original thread: http://neuroimage.usc.edu/forums/t/doubt-about-current-density-units-pa-m-or-pa-m2
A very interesting paper from Yoshio Okada's Team: :murakami2006.pdf|