MECP2 and autism spectrum disorder: In this work, we apply a bistable visual perception paradigm to study the mouse model of methyl-CpG-binding protein 2 duplication syndrome (MECP2-ds; Collins et al., 2004; Ramocki et al., 2010), a syndromic autism spectrum disorder (ASD) caused by genomic duplication of MECP2 (Ramocki et al., 2010) that exhibits 100% penetrance in males.