“…When a child anticipates a reward and the reward is omitted, a negative affective state ensues (i.e. “frustration”) and typically manifests in the form of aggression (Gatzke-Kopp, Willner, Jetha, Abenavoli, DePuis, & Segalowitz, 2015). The aggressive reaction, such as a temper tantrum, encompasses changes in affective arousal, cognitive control, physiology, and dopaminergic processes (Hubbard et al, 2002; Schoemaker, Mulder, Dekovic, & Matthys, 2013; Deveney et al, 2013; Kreibig, 2010).…”