MYT1L and Intellectual disability: Other data indicate the importance of Myt1l in neuronal development: Myt1l overexpression in NSCs and in vivo increases neuronal differentiation (Mall et al., 2017) and mutations in Myt1l have been associated with intellectual disability, schizophrenia and autism (Li et al., 2012; De Rubeis et al., 2014; De Rocker et al., 2015).