ABSTRACT
Other research has shown that after 6 months of age ERP am plitudes for both early and late com ponents (P100, N100, N200, N400, and P300) tend to decrease with increasing age (Courchesne, 1978; Holcom b et al., 1992; Johnson, 1989; Kurtzberg et al., 1986; M ullis, Holcomb, Diner, & Dykman, 1985), although some research suggests that the am plitude of the P300 may increase with age (M clsaac & Polich, 1992; Polich, et al., 1990). Overall reductions in ERP am plitudes with increasing age were not observed in this study. These results suggest that very few o f the developmental changes in ERPs observed here can be attributed solely to general maturational factors.
