Figure 6.

shows cross-sectional age effects in our sample (panel A) and schematically represents the developmental trend implied by the current findings (panel B). Early in development, children at high risk for ADHD demonstrate steeper spectral slopes than their low-risk peers; however, the developmentally normative flattening of the spectral slope is exaggerated in the high-risk children, such that by adolescence, the ADHD group has flatter spectral slopes than their typically-developing peers.