Fig. 2. The figure shows the box plots with the median, 50% outliers (ο), and extremes (*) of the auditory evoked potentials (AEP) peak amplitudes and latencies versus  Modified Observer's Assessment of Alertness and Sedation (MOAAS) scale, for moving time averaging (MTA) and autoregressive model with exogenous input (ARX) methods. (A ) and (B ) show the Na latencies; (C ) and (D ) show the Pa latencies; (E ) and (F ) show the Nb latencies; and (G ) and (H ) show the Na-Pa amplitudes, in all cases for MTA and ARX, respectively.