Fig. 1.
Photomicrographs of isolated branches of corticostriatal terminals labeled by injections of FR or BDA into SI barrel cortex. A, FR-labeled corticostriatal terminals in the neostriatum of rat D45. B, BDA-labeled axons in the neostriatal neuropil of rat D48; some axons appear blurred because they lie outside the focal plane. Arrowheads indicate some of the beaded varicosities appearing along the length of the labeled axons. The scale bar applies to both panels.
