Table 1 Descriptive statistics for FFR_ENV derived parameters: neural lag; F₀ spectral amplitude and SNR computed for the steady pitch section; stimulus-to-response cross-correlation, pitch error and pitch strength computed separately for each section of the stimulus (/a/ steady section; /a/ rising section).

Measure	Mean	SD	Median	Q₁	Q₃	IQR	Minimum	Maximum
Neural lag (ms; from 10 to 250 ms)
Newborns	9.33	1.74	9.26	8.70	10.01	1.31	3.53	12.60
Adults	6.26	1.21	5.85	5.55	6.47	0.92	5.10	9.75
F₀ spectral amplitude (µV; from 10 to 160 ms)
Newborns	0.01	0.01	0.01	< 0.01	0.02	0.01	< 0.01	0.03
Adults	0.02	0.01	0.02	0.01	0.02	0.01	0.01	0.04
F₀ SNR (from 10 to 160 ms)
Newborns	4.36	4.72	5.86	0.82	7.83	7.01	−11.07	10.95
Adults	4.53	3.43	4.70	3.01	7.26	4.25	−3.52	9.40
/a/ steady section (90–160 ms)
Cross-correlation (Pearson’s r)
Newborns	0.18	0.06	0.18	0.12	0.23	0.11	0.06	0.30
Adults	0.20	0.05	0.20	0.17	0.23	0.07	0.07	0.27
Pitch error (Hz)
Newborns	11.66	7.15	10.18	5.64	16.55	10.90	2.76	28.73
Adults	9.45	3.40	9.77	6.45	12.07	5.63	3.27	15.29
Pitch strength (r)
Newborns	0.60	0.18	0.57	0.45	0.74	0.29	0.32	0.88
Adults	0.55	0.09	0.55	0.46	0.62	0.15	0.43	0.76
/a/ rising section (160–250 ms)
Cross-correlation (Pearson’s r)
Newborns	0.11	0.04	0.10	0.08	0.13	0.05	0.05	0.18
Adults	0.10	0.02	0.10	0.09	0.12	0.03	0.06	0.15
Pitch error (Hz)
Newborns	11.72	7.08	10.44	5.50	16.25	10.75	2.60	28.15
Adults	9.50	3.34	9.87	6.55	12.00	5.45	3.13	15.03
Pitch strength (r)
Newborns	0.60	0.18	0.56	0.45	0.74	0.29	0.32	0.88
Adults	0.55	0.09	0.55	0.46	0.61	0.15	0.44	0.75

SD standard deviation, Q₁ first quartile (25th percentile), Q₃ third quartile (75th percentile), IQR interquartile range.

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