Funding: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the NIH R35NS111619 (S.F.T.), R01 NS069605 (H.C.M.), R01NS040109 (K.S.), R01NS034700 (K.S.), R21NS096948 (K.S.), and R37NS077908 (K.S.) and grant W81XWH-15-2-0069 from CURE and DOD (K.S.), the Science Foundation Ireland (D.C.H., grant numbers 16/RC/3948, 13/IA/1891, and 11/TIDA/B1988), European Regional Development Fund and by FutureNeuro industry partners (D.C.H.), the Health Research Board Ireland HRA-POR-2013-325 (D.C.H.), the European Union Seventh Framework Programme FP7/2007-2013 grant agreement n° 602130 (D.C.H.).