Table 2.
Auditory characteristics of HVC interneurons
| Unresponsive (n = 28) | Suppressive (n = 51) | BOS-ONLY Excitatory (n = 15) | CON-ONLY Excitatory (n = 64) | BOS-CON Excitatory (n = 75) | Total Population (n = 233) | |
|---|---|---|---|---|---|---|
| BOS RSINDEX | 0.074 ± 0.027 | −0.108 ± 0.026 | 0.396 ± 0.055 | 0.028 ± 0.021 | 0.394 ± 0.023 | 0.145 ± 0.018 |
| CON RSINDEX | 0.010 ± 0.023 | −0.193 ± 0.016 | −0.084 ± 0.027 | 0.072 ± 0.010 | 0.219 ± 0.020 | 0.044 ± 0.013 |
| d′ | 0.186 ± 0.091 | 0.328 ± 0.093 | 2.139 ± 0.291 | −0.167 ± 0.079 | 1.398 ± 0.139 | 0.640 ± 0.075 |
| Linearity (mean CC ratio) | N/A | N/A | N/A | 0.193 ± 0.025 | 0.320 ± 0.019 | 0.262 ± 0.016 |
Values are means ± SE. BOS, bird's own song; CON, conspecific song; RSINDEX, normalized response strength; d′, bias toward BOS.