For example, copy number variants (CNV) in NRXN1 are reported to be present in about 0.4% of autistic people, and SHANK3 in 0.05–0.7%, which increases to 2% in autistic people with moderate to profound intellectual disability (Devlin and Scherer, 2012; Leblond et al., 2014). This evidence concerns the gene NRXN1 and Intellectual disability.