Figure 6.

Patterns of saccular efferent bundle activity during fictive vocalizations were similar to those seen in the caudal efferent bundle, except no neurons showed suppression during fictive vocalizations. A, B, All saccular efferent neurons (black) exhibited an increase in activity during fictive vocalizations (gray); B, in some neurons, this was followed by decreased activity at fictive vocal offset. These responses were evident in raster diagrams (A1, B1), spike density functions (A2, B2), and plots of instantaneous spike rate (A3, B3). Scale bar represents time scale for A1, B1.