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Physical parameters of vocalization stimuli.
| Infant vocalisations | Adult vocalisations | t-value | P-value | |||
|---|---|---|---|---|---|---|
| M (SD) | Range | M (SD) | Range | |||
| F 0 (Hz) | 376.06, 82 | 257.81–527.56 | 334.77, 94.59 | 175.78–574.22 | 1.81 | 0.08 |
| Burst duration (s) | 1, 0.44 | 0.28–1.50 | 0.72, 0.24 | 0.23–1.5 | 3.2 | 0.002 |
| Number of bursts | 1.73, 1.76 | 1–4 | 2.13, 1.58, 1.56 | 1–3 | ||
F 0, fundamental frequency.
fMRI scanning and analysis.
