“…BI can be identified in childhood based on structured interview and/or observation of behavior of the child when confronted with unfamiliar people and objects (Kagan, Reznick, Clarke, Snidman, & Garcia-Coll, 1984). Inhibited temperament in childhood is a risk factor for future development of anxiety disorders (Biederman et al, 1993; Hirshfeld et al, 1992; Pérez-Edgar et al, 2010; Svihra & Katzman, 2004) and for post-traumatic stress disorder (PTSD; Fincham, Smit, Carey, Stein, & Seedat, 2008; Kashdan, Morina, & Priebe, 2009). …”