association, with studies reporting positive correlations with both positive (Andreasen et al., 2011; Chan et al., 2010; Cheung et al., 2011; Choi et al., 2011; Lee et al., 2013; Moriya et al., 2010; Psomiades et al., 2016; Rotarska‐Jagiela et al., 2009, 2008; Seok et al., 2007; Szeszko et al., 2008; Whitford et al., 2010) and negative symptoms (Lener et al., 2015; Mendelsohn, Strous, Bleich, Assaf, & Hendler, 2006; Michael, Calhoun, Pearlson, Baum, & Caprihan, 2008) and negative correlations both with positive (Lee et al., 2013; Skelly et al., 2008) and with negative symptoms (Balevich et al., 2015; Gu et al., 2016; Luck et al., 2011; Mendelsohn et al., 2006; Michael et al., 2008; Moriya et al., 2010; Rigucci et al., 2013; Szeszko et al., 2008; Wolkin et al., 2003). Many studies reported no relationship between FA values and psychiatric symptoms using whole‐brain analyses (Chen et al., 2013; Kyriakopoulos et al., 2009; Kyriakopoulos, Vyas, Barker, Chitnis, & Frangou, 2008; Liu et 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.,
