Figure 9. Movement-induced c-fos expression in zebra finches.

A. Vocal areas: brain section containing all seven cerebral vocal nuclei from a singing bird. B. Movement areas: serial sections from a hopping bird in the rotating wheel in the dark while deaf. The patterns are similar to that found with ZENK (Fig. 6C). See figure 6E for delineation of anatomical boundaries. Anterior is right, dorsal is up. Scale bar, 2 mm.