Fig. 3.

Levels selected for the image analyses. Seven levels, from the rostral to the caudal parts of the striatum, were selected for LCGU analysis. This schematic lateral view representation of the striatum in the center of the figure displays the anterior–posterior levels selected in each animal. The dark gray image represents the caudate nucleus, whereas thelight gray area is the putamen. Autoradiograms from one monkey are shown at each of the seven levels. Note that the scale is not applicable from one photograph to another.