International Journal of Otolaryngology / 2012 / Article / Tab 2 / Research Article
Slow Cortical Potentials and Amplification—Part II: Acoustic Measures Table 2 Mean (
) and standard deviation for gain measured at (i) 30 ms and (ii) maximum amplitude, and rise time (measured at 90% of maximum amplitude) for the cortical stimuli.
Nominal gain (dB) Input (dB SPL) Short stimulus (60 ms) Long stimulus (757 ms) 20 40 20 40 30 50 70 30 50 30 50 70 30 50 Analog 30 ms (dB) 15.9 ± 1.6 17.0 ± 0.9 17.3 ± 1.0 34.9 ± 2.2 36.2 ± 1.8 16.0 ± 0.7 16.7 ± 0.6 17.4 ± 0.7 35.5 ± 0.5 35.5 ± 1.4 Max (dB) 15.7 ± 1.1 16.9 ± 1.0 17.4 ± 0.1 34.5 ± 1.9 36.2 ± 2.0 15.2 ± 1.3 16.6 ± 0.7 17.3 ± 0.8 34.7 ± 1.9 35.3 ± 1.5 Rise time (ms) 22.2 ± 1.9 21.9 ± 1.4 22.4 ± 1.7 22.5 ± 1.4 22.1 ± 1.9 12.5 ± 3.2 11.6 ± 3.2 12.8 ± 2.8 11.9 ± 1.9 12.3 ± 2.6 DigitalA 30 ms (dB) 10.9 ± 4.5 15.8 ± 3.1 15.6 ± 3.1 30.1 ± 6.1 35.5 ± 3.5 13.1 ± 3.3 17.0 ± 2.0 16.8 ± 2.4 33.8 ± 3.2 36.1 ± 1.5 Max (dB) 15.4 ± 3.2 17.1 ± 2.7 16.7 ± 2.6 34.5 ± 4.3 36.3 ± 2.6 15.7 ± 2.4 17.8 ± 1.6 17.1 ± 2.6 36.9 ± 1.9 36.4 ± 1.3 Rise time (ms) 38.6 ± 3.7 27.9 ± 3.3 30.3 ± 3.1 33.8 ± 6.6 22.6 ± 2.3 39.4 ± 7.2 25.7 ± 7.4 23.4 ± 6.6 43.3 ± 14.7 18.8 ± 5.5 DigitalB 30 ms (dB) −2.7 ± 2.1 0.9 ± 2.9 0.2 ± 2.3 21.5 ± 3.4 23.1 ± 2.3 −2.0 ± 3.2 1.4 ± 5.3 4.2 ± 3.9 23.1 ± 2.2 26.1 ± 2.6 Max (dB) 4.5 ± 3.8 7.6 ± 2.3 7.5 ± 1.1 26.2 ± 2.2 27.8 ± 1.6 13.8 ± 4.1 15.8 ± 3.1 17.4 ± 2.2 35.4 ± 1.8 37.0 ± 1.8 Rise time (ms) 45.5 ± 2.7 44.2 ± 1.8 45.2 ± 1.5 41.6 ± 2.4 40.9 ± 2.5 141.5 ± 8.9 150.8 ± 4.5 149.6 ± 8.4 154.5 ± 3.3 145.6 ± 3.2