Front. Aging Neurosci., 05 February 2014| http://dx.doi.org/10.3389/fnagi.2014.00014Received: 02 October 2013; Accepted: 22 January 2014; Published online: 05 February 2014.Shinichi Amano, Ohio University, USA Jacob Sosnoff, University of Illinois at Urbana-Champaign, USA
