SOD1 and amyotrophic lateral sclerosis: A new interest to study the development of electrical properties in mouse motoneurons came with the discovery that spinal motoneuron pathology starts during the postnatal period in superoxide dismutase 1 (SOD1) transgenic mice, a standard model of amyotrophic lateral sclerosis (ALS; Amendola et al., 2004, 2007; Durand et al., 2006; Bories et al., 2007; Amendola and Durand, 2008; Pambo-Pambo et al., 2009; Quinlan et al., 2011; Filipchuk and Durand, 2012; Saxena et al., 2013).