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A typical brainstem response of a NL child to the speech syllable /da/. Onset waves V and A are marked with arrows. Wave V is the positive peak at 7.76 ms, and wave A is the negative trough at 8.61 ms. The VA-complex slope (the transition between the peak and the trough) is defined as the microvolt (amplitude) change per millisecond between wave V and wave A.
