al., 2013; Melicher et al., 2015; Sugranyes et al., 2012; Wang et al., 2013) and more specific region‐of‐interest analyses including the CC (Li et al., 2014) and other regions (Kawashima et al., 2009; Kitamura et al., 2005; Kitis et al., 2012; Kumra et al., 2004; Price et al., 2008). The mixed findings in past studies regarding FA values and psychiatric symptoms may be partially explained by the differences in the number of participants, severity of the symptoms of the participants, and their treatment histories.