“…SAD often begins in the mid-teens, but can also occur in early childhood and can manifest itself early on as childhood shyness (Hayward, Killen, Kraemer, & Taylor, 1998;Mick & Telch, 1998;Neal, Edelmann, & Glachan, 2002;Neal & Edelmann, 2003;Rosenbaum, Biederman, Hirshfeld, Bolduc, & Chaloff, 1991;Rosenbaum, Biederman, Pollack, & Hirshfeld, 1994;Schwartz, Snidman, & Kagan, 1999). Childhood shyness (also known as behavioral inhibition) refers to a person's degree of wariness and timidity when encountering novel people, objects, or events (Kagan, 2001) and related constructs have been discussed by others (e.g., Cloninger, 1987a,b;Eysenck, 1981;Gray & McNaughton, 1996).…”