Fig. 1.

Timing differences present in the responses (Bottom Panels) are absent in the stimuli (Top Panels). For the stimuli and responses, [ba] is plotted in blue, [da] in red, and [ga] in green. (Left) The time domain grand averages of high-pass filtered responses from typically developing children (n = 20) are plotted below the [ba], [da], and [ga] stimuli. The peaks analyzed in the present study are marked on the responses (onset: 1, 2; major: 3, 4, 6, 7, 9, 10, 12, 13; minor: 5, 8, 11, 14; endpoint: 15, 16). For visual coherence, the stimuli have been shifted in time by 8 ms to account for the neural conduction lag. (Right) The 52- to 57-ms region of the responses and time-adjusted stimuli have been magnified to highlight latency differences found among the responses (Bottom) that are not present in the stimuli (Top). These latency differences are thought to reflect the differing second formants of the stimuli schematically plotted in the inset (Top Left).