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. Author manuscript; available in PMC: 2009 May 7.
Published in final edited form as: Brain Res. 2008 Apr 2;1208:137–149. doi: 10.1016/j.brainres.2008.02.015

Figure 3.

Figure 3

Matching ERP responses to Word and Environmental Sound trials in Pre-Adolescents, Adolescents, and Adults. The matching-item N400 was elicited, and was of a strikingly similar amplitude and appearance, in all three age groups in the Environmental Sound trials (top panel). N400 was much less pronounced in the Word trials (bottom panel). The three main developmental effects were: (1) the smaller N1, (2) the larger N2 (marked), and (3) the larger slow underlying positive shift activity in the youngest groups. These N1 and N2 effects were outside the N400 analysis window.