Effect of Vocal Nerve Section on Song and ZENK Protein Expression in Area X in Adult Male Zebra Finches
Figure 3
The distribution of ZENK labeled in Area X. ((a), (b)) Area X is a large nucleus distinct from the surrounding Mst. Area X is detectable in the right- and left-side brain of the male zebra finch. ((c), (d)) Before nerve section both sides of the ZENK expression in Area X; ((e), (f)) ZENK expression in Area X at the 7th day after left vocal nerve section; ((g), (h)) ZENK expression in Area X after right vocal nerve section at the 7th day. The small arrow indicates the ZENK-positive cells present in Area X (bar: 100 μm).
