“…Other researchers found overlaps between autism, schizophrenia spectrum (SS) and BD (Ellis et al, 2016;Goes et al, 2016) but also clear differences, especially in monozygotic twins (Dempster et al, 2011). Although some clear phenotypic or genetic distinctions have been reported between autism, schizophrenia, Attention-Deficit/Hyperactivity Disorder (ADHD) and BD (Albajara Sáenz et aL, 2020 ;Antshel & Russo, 2019 ;Antshel et al, 2013 ;Boedhoe et al, 2020 ;Christakou et al, 2013 ;Cristino et al, 2014 ;Di Martino et al, 2013 ;Dougherty et al, 2016;Godoy et al, 2021 ;Lim et al, 2015 ;Mahajan et al, 2016 ;Park et al, 2018 ;Scholl & Philippe, 2012 ;Seernani et al, 2021 ;Sinzig et al, 2009 ;Stoodley, 2014 ;van der Meer et al, 2012 ;Zhang et al, 2022), it is impossible to ignore all overlaps between at least two of these disorders that have been discovered -even if some are still embryonic as for example for ASD and BD or ADHD and BD -over the past 25 years (Table 1).…”