Anticipated absolute reward magnitude activity in adolescents and adults for the whole brain analyses.

<p>Results are shown on a coronal slices for the VS (y = 8). Although the direct comparison between the two groups was not significant, the within group analyses show that the adults demonstrated strong, bilateral activation in the VS and other adjacent regions whereas the effect was much weaker in the adolescents. P-value threshold set to .005 as in other whole brain analyses.</p

Regions demonstrating significant activity to amount of gain vs. failure to gain.

<p>Note. Negative peak t-values indicate areas that showed greater activation to failure to obtain rewards. Occ. = occipital; PFC = prefrontal cortex; VS = ventral striatum; M = Mesial.</p

Correlations between net difference in reward activity in the VS and Impulsivity.

<p>Note. Correlations reflect Spearman's rank-order correlations and control for age group.</p>*<p>p<.05.</p

Regions demonstrating significant activity for absolute anticipation.

<p>Note. Negative peak t-values indicate areas that showed greater activation to failure to obtain rewards. VS = ventral striatum; M = mesial.</p

Regions demonstrating significant activity for relative anticipation.

<p>VS = ventral striatum.</p