In the third paradigm, the loudness of the rare tone was increased from 70 dBSPL to 85 dBSPL while all other parameters were kept equal to paradigm 1. This change in stimulus loudness was found to cause significant increases in the total volume of the rare tone in the 0-50 msec region of interest in the 7-34 Hz frequencies as compared to the standard (rare tone=1280 ± 575, standard tone 1117 ± 547; F=23.3, df=1,64, p<0.0001). A comparison of the total volume of ERO regions of interest between the rare tone presented in paradigm 1 (70 dBSPL, loudness) and that presented in paradigm 3 (85 dBSPL loudness), both of which had the same frequency and probability, revealed that a significant increases in the total volume of the rare tone in paradigm 3 in the 0-50 msec region of interest in the 7-34 Hz frequencies as compared to paradigm 1(rare tone paradigm 3=1280 ± 575, rare tone paradigm 1 1087 ± 626; F=9.8, df=1,64, p<0.003) and a decrease in the total volume of the 350-800 msec region of interest in the
