Table 1. Epoch numbers in the different conditions, for the GPs and PPs groups.

	PPs	GPs	t(df), p value
Native phoneme standards	156.86±15.84*	126±4.75	t(28) = 1.97, p = 0.06
Native phoneme deviants	85.29±8.15*	72.94±2.88	t(28) = 1.50, p = 0.15
Unknown phoneme standards	156.71±13.98*	130.94±3.30	t(28) = 1.91, p = 0.07
Unknown phoneme deviants	89.14±7.63*	76.13±1.91	t(28) = 1.76, p = 0.09
Frequency standards	727.57±20.34	731.93±52.26	t(27)<1, p = 0.77
Frequency deviants	98.64±1.82	98.86±6.24	t(27)<1, p = 0.89
Duration standards	749.84±108.87	722.93±36.26	t(27)<1, p = 0.37
Duration deviants	102.69±14.48	98.62±6.50	t(27) = 1.01, p = 0.35
Pattern standards	415.57±54.44	397.12±6.25	t(28) = 1.34, p = 0.22
Pattern deviants	415.71±54.68	397.18±6.30	t(28) = 1.34, p = 0.21

*For the spectral analysis, the number of segments for the PPs was randomly selected to match the number of segments for the GPs: 135.35±7.11 native phoneme standards, 77.35±6.14 native phoneme deviants, 136.14±10.02 unknown phoneme standards and 79.42±4.5 unknown phoneme deviants. There were no differences between the groups in the number of segments for any phoneme stimulus (for all t-tests t<1).