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. Author manuscript; available in PMC: 2021 Nov 12.
Published in final edited form as: Braz J Otorhinolaryngol. 2017 Jan 23;84(2):150–158. doi: 10.1016/j.bjorl.2016.12.004

Figure 1.

Figure 1

Mean and p-value of absolute latencies (in ms) of waves I-IV of BAEP for the Time Effect. Pre, Pre-exposure to Pb; Post, Post-exposure to Pb; ms, milliseconds; p obtained from the comparison at each moment (pre and post-exposure to Pb); * p ≤ 0.01; Pre-exposure to Pb, rats with 26 days old; Post-exposure to Pb, rats with 63 days old. The maturation of the auditory system (auditory nerve and brainstem) that occurs in humans from birth to the second year of life, promotes a gradual decrease in absolute latencies of BAEP waves.