Correlation between Mandarin acceptable noise level and cortical auditory evoked potential in young normal-hearing listeners

• Published in: Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery head, and neck surgery, 2022-09, Vol.36 (9), p.679
• Main Authors: Chen, Jianyong, Zhu, Haiyue, Shen, Jiali, Ma, Xiaobao, Wang, Wei, Sun, Jin, Chen, Xiangping, Yang, Jun
• Format: Article
• Language: Chinese
• Subjects: Acoustic Stimulation; Auditory Cortex; Evoked Potentials, Auditory; Hearing; Humans; Noise; Speech Perception; Young Adult
• ISSN: 2096-7993
• DOI: 10.13201/j.issn.2096-7993.2022.09.006

To investigate the correlation between Mandarin acceptable noise level （M-ANL） and cortical auditory evoked potential （CAEP）, and to explore the possible mechanism leading to individual differences in M-ANL values. Thirty listeners aged 22-33 years with normal hearing were selected as the study subjects, and the M-ANL test and CAEP test were performed respectively. The most comfortable level （MCL）, maximum background noise level （BNL）, M-ANL and CAEP values of each subject were recorded. The latency of each wave of P1, N1, P2, N2, P300 and the amplitude of P1-N1, P2-N2, P300 in CAEP were recorded for each subject. SPSS 25.0 was used for statistical analysis to explore the correlation between the MCL value, BNL value and M-ANL values and the latency of P1, N1, P2, N2, P300 and P1-N1, P2-N2, P300 amplitudes of CAEP. ①The MCL value and M-ANL value were positively correlated with the P2 latency of CAEP, and the correlation coefficients were 0.404 and 0.400, respectively, and the differences were statistically sig