Figure 6.

Auditory steady state responses (ASSR) of rats as a function of the delay of the standard time-domain averaging onset. All responses were evoked by 8-kHz tones of 50 dB SPL. The time course of the ASSR amplitude and the residual noise level (RNL) obtained for different delays in a representative adult animal are shown in (A) and (D), respectively. (B) and (E) present the effect of the delay on the ASSR amplitude and the RNL estimated in the first epoch included in the analysis, respectively. (C) and (F) show the effect of the delay on the ASSR amplitude and the RNL obtained after completing the averaging, respectively. The plot in (B) and (C) represents the mean (symbol)±standard error (vertical bar) across the eight animals. For clarity, vertical bars are only represented in (C) for a delay=0 s.