Figure 7. Striatal components.

(A) Lesion studies differentiating anterior dorsolateral striatum from posterior medial striatum find that anterior dorsolateral striatum is critical for response and habit strategies, while posterior medial dorsal striatum is critical for place and deliberative strategies. Right-side panel modified from Yin and Knowlton (2004) with permission of author and publisher. (B) fMRI studies find that ventral striatum is active in Pavlovian and instrumental (deliberative, habit) tasks, while dorsal striatum is only active during instrumental (in this case, habit) tasks. Figures in panel B from O’Doherty and others (2004), reprinted with permission of author and publisher.