Figure 2.
Group frequency mapping data for normal starlings. A , B , Pooled CF and BF data, respectively, for five normal starlings and linear regression functions [r 2 values: CF ≤2 kHz, 0.26; CF >2 kHz, 0.69; BF (for CF ≤2 kHz), 0.38; BF (for CF >2 kHz), 0.68]. C , Thresholds for all multiunit clusters in normal animals as a function of CF; solid line is fitted polynomial function.
