OXT and schizophrenia: Accordingly, the role of endogenous OXT remains inconclusive, with studies reporting lower (Goldman et al., 2008; Jobst et al., 2014; Aydin et al., 2018) or higher (Legros et al., 1992; Strauss et al., 2015) cerebrospinal fluid (CSF) and plasma OXT levels in patients with schizophrenia, as well as varying associations with symptom load (Goldman et al., 2008; Kéri et al., 2009; Rubin et al., 2010; Jobst et al., 2014).