Fig. 12.

Coronal diagrams showing electrode tip placement of marked and estimated unmarked wires across all 13 animals.Filled circles represent electrode locations that were marked by the presence of a blue dot reaction product (Prussian blue) corresponding to the location of an electrode tip. Open circles indicate estimated position of unmarked electrode tips. Numbers to the left indicate AP coordinates (in millimeters) rostral to bregma. Diagrams were taken from the stereotaxic atlas of Paxinos and Watson (1997). Acb, Nucleus accumbens: S, nucleus accumbens, shell;C, nucleus accumbens, core; CPu, caudate putamen.