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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Hear Res. 2016 May 10;337:46–58. doi: 10.1016/j.heares.2016.04.009

Figure 6.

Figure 6

Effect of sound pressure level and age on wave 1 in the binaural, summed monaural, left and right monaural ABR. Results for wave 1 in the binaural ABR are indicated by squares and in the summed monaural ABR by circles. Results for wave 1 in left and right monaural ABR are indicated by a diamond and triangle, respectively. The different age groups are represented by black and grey for young and old gerbils, respectively. Linear regression lines for all stimulation modes are shown in addition to the data points. See text for information about the slope of the functions. (A): Latency in ms (± S.E.M) of wave 1 for different intensities in dB pSPL. Left, right and binaural-evoked wave 1 are shown. Young animals are displayed in black and old animals are displayed in grey. (B) Amplitude in μV (± S.E.M) of wave 1 for different intensities in dB pSPL. Left, right and binaural-evoked wave 1 are shown. Young animals are displayed in black and old animals are displayed in grey. Sample size: Young: 60 dB: 11 animals, except left: 10 animals; 70 dB: 9 animals; 80 dB: 11 animals; 90 dB: 9 animals. Old: 60 dB: 4 animals, except left: 3 animals; 70 dB: 8 animals, except left: 7 animals; 80 dB: 8 animals; 90 dB: 10 animals.