AUTHOR=Persinger Michael A. TITLE=Brain electromagnetic activity and lightning: potentially congruent scale-invariant quantitative properties JOURNAL=Frontiers in Integrative Neuroscience VOLUME=Volume 6 - 2012 YEAR=2012 URL=https://www.frontiersin.org/journals/integrative-neuroscience/articles/10.3389/fnint.2012.00019 DOI=10.3389/fnint.2012.00019 ISSN=1662-5145 ABSTRACT= The space-time characteristics of the axonal action potential are remarkably similar to the scaled equivalents of lightning. The energy and current densities from these transients within their respective volumes or cross-sectional areas are the same order of magnitude. Length-velocity ratios and temporal durations are nearly identical. Careful, quantitative examination of the characteristics of lightning may reveal analogous features of the action potential that could lead to a more accurate understanding of these powerful correlates of neurocognitive processes.