Fig. 3.

Retrograde fluorescent tracer dextran injection into the mouse superior colliculus (SC). (A) Injection site of the SC. (B) PV-immunoreactive (IR) cells in the ganglion cell layer of the retina. (C) Dextran containing cells in the same focus as (B). (D) Merged image of (B) and (C). Some cells (arrowheads) are clearly co-localized by anti-parvalbumin antibody and dextran in the mouse retina. SGL, superficial gray layer; OL, optic layer; IGL, intermediate gray layer. Bars=100 µm (A), 50 µm (D).