Recent genome-wide association studies have revealed that a growing number of DCC mutations are associated with psychiatric disorders, such as mood instability, neuroticism, schizophrenia, and depression (Ward et al., 2017; Kibinge et al., 2020; Li et al., 2020; Torres-Berrío et al., 2020; Vosberg et al., 2020). The gene discussed is DCC; the disease is psychiatric disorder.