Table 1. All temporal and spectral parameters used in the main analysis. For each group of mice the mean (+/− standard deviation) is given.
| German females | German males | French females | French males | |
| Quantitative parameter set 1: number of songs | ||||
| songs/night | 20.3 (+/−14.5) | 12.53 (+/−13.74) | 17.2 (+/−14.3) | 14.6 (+/−45.8) |
| Quantitative parameter set 2: temporal data | ||||
| song duration | 505.9 (+/−382.9) | 300.3 (+/−181.0) | 565.3 (+/−479.4) | 294.0 (+/−183.4) |
| syllables/second | 20.0 (+/−17.6) | 29.25 (+/−18.2) | 25.6 (+/−14.5) | 31.8 (+/−20.9) |
| Qualitative parameter set: syllable data | ||||
| duration | 69.4 (+/−36.5) | 46.3 (+/−36.5) | 50.6 (+/−36.4) | 36.5 (+/−26.0) |
| freqsta (1) | 78.4 (+/−8.2) | 80.1 (+/−14.2) | 76.3 (+/−10.8) | 81.5 (+/−18.6) |
| freqslope (1) | 0.1 (+/−0.3) | 0.2 (+/−0.5) | 0.1 (+/−0.5) | 0.1 (+/−0.6) |
| freqmin (1) | 68.6 (+/−11.4) | 75.0 (+/−14.0) | 65.3 (+/−11.1) | 75.5 (+/−18.5) |
| freqband (1) | 23.0 (+/−14.4) | 14.5 (+/−10.6) | 22.9 (+/−14.3) | 15.1 (+/−14.4) |
| freqCOG (1) | 78.1 (+/−10.6) | 82.6 (+/−13.3) | 75.6 (+/−9.8) | 83.6 (+/−18.8) |
| jumps | 0.6 (+/−0.9) | 0.1 (+/−0.4) | 0.8 (+/−1.1) | 0.2 (+/−0.5) |
| turns | 2.0 (+/−1.8) | 1.2 (+/−1.5) | 2.0 (+/−2.2) | 0.9 (+/−1.1) |
(1)
start frequency, frequency slope (calculated as change of frequency in kHz per ms), minimum frequency, frequency band (calculated as change of frequency in kHz per ms) and COG of frequency (COG = Centre of gravity, see Methods section Sound analysis for calculation).