" ... Here, we established experimentally and
theoretically that contributions of axons to EFPs can be significant. Modeling action
potentials propagating along axons, we showed that EFPs were prominent in the
presence of terminal zones where axons branch and terminate in close succession, as
found in many brain regions. Our models predicted a dipolar far field and a polarity
reversal at the center of the terminal zone. ..."
McColgan T, Liu J, Kuokkanen PT, Carr CE, Wagner H, Kempter R (2017) Dipolar extracellular potentials generated by axonal projections. Elife [PubMed]