Figure 2.

Figure 2 depicts a heuristic developmental model illustrating a shift from primarily automatic to both automatic and controlled processing over development (ie, moving left to right on figure). Superimposed on these normative changes are individual differences in the integration and relative balance of neural systems underlying automatic and controlled processing. In panel a, the systems are both accessible and function in a complementary manner indexing a more adaptive profile. In panel b, one system maintains more dominance and/or there is less integration between systems indexing a less adaptive profile.