progressive functional integration within and between executive circuitries. During interference inhibition, using a psychophysiological interaction analysis, increased functional connectivity was observed within fronto-thalamic and fronto-parietal networks in adolescents between 14 and 15 years relative to children between 8 and 11 years [47]. An interesting meta-analysis of cognitive control studies, including studies of children between 6 and 13 years and studies that were defined as adolescent studies, including children and adolescents between 10 and 17 years, found consistent activation in IFC/DLPFC and anterior insula in all groups with a laterality age effect, however, in the anterior insula which was more activated in the right hemisphere in adolescents relative to children [53], presumably reflecting increased cognitive control. Similar findings were also observed for error monitoring in two independent studies. Increasing age between 10 and 42 years was correlated with progressively enhanced activation in a typical performance monitoring network [54] of anterior and posterior cingulate during response inhibition errors [27] (Fig. 1e). Findings remained when performance was covaried. Similar findings of increased activation in adults relative to children aged 8–12 years and adolescents aged 13–17 years in ACC during errors of reflex inhibition were also observed by a second study, in which performance