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. 2023 May 22;18(5):e0284626. doi: 10.1371/journal.pone.0284626

Fig 2. Mean plots of ABR thresholds measured at baseline (A), 3 days (B), one week (C), and two weeks (D) after the treatment.

Fig 2

Noise-induced threshold shifts one week after exposure differed significantly among the experimental groups (noise + vehicle, noise + 1 mM LiCl, and noise + 2 mM LiCl). The gray shaded area indicates narrow-band noise spectrum. Error bars show standard deviation. The statistical significance of group differences is indicated by asterisks: * p < 0.05, ** p < 0.01, *** p < 0.001 based on the Kruskal-Wallis H test. n = number of animals, ABR; auditory brainstem response, dB SPL; decibel sound pressure level.