MLRs to the same physical stimulus presented in different conditions.

<p><b>A</b>−<b>C.</b> Grand-average MLR responses (N = 23) to deviants, standards and controls at Fz. The grey shaded areas and the framed area mark the time windows of the mean amplitudes used for statistics. <b>D.</b> Mean amplitudes from 21 to 27 ms after stimulus onset (grey shaded field in A−C) in response to deviant (dev), standard (std) and control (con) at Cz, FCz, Fz, FC3 and FC4.