Journal of Forensic Medicine ›› 2021, Vol. 37 ›› Issue (6): 813-816.DOI: 10.12116/j.issn.1004-5619.2020.200913

• Original Article • Previous Articles     Next Articles

Comparison of ASSR, ABR and 40 Hz AERP Response Thresholds at Different Frequencies and Their Forensic Applications

Xin-yuan ZHANG1(), Fang-liang LUO1,2, Long-long CHENG1,3, Yan-he XIONG1,4, Ji-hui LIU1,2()   

  1. 1.Department of Forensic Clinical Medicine, School of Forensic Medicine, China Medical University, Shenyang 110122, China
    2.Liaoning University Expert Evidence Center, Academy of Forensic Science Liaoning University, Shenyang 110036, China
    3.Affiliated Zhongshan Hospital of Dalian University, Dalian 116001, Liaoning Province, China
    4.Shanghai Love Nursing Station, Shanghai 200030, China
  • Received:2020-09-25 Online:2021-12-25 Published:2021-12-28
  • Contact: Ji-hui LIU

Abstract: Objective

To explore the relationship between the frequency characteristics and response threshold of auditory steady-state response (ASSR), auditory brainstem response (ABR) and 40 Hz auditory event related potential (40 Hz AERP), and their application values in forensic medicine.

Methods

Thirty volunteers with normal hearing (60 ears) were selected to perform pure tone audiometry (PTA) threshold and ASSR, ABR and 40 Hz AERP response threshold tests in the standard sound insulation shielding room, and the results were statistically analyzed by SPSS 22.0 software.

Results

At 0.5 kHz and 1.0 kHz frequencies, the correlation between 40 Hz AERP response threshold and PTA threshold was good, which was better than that of ASSR and ABR response threshold. At 2.0 kHz and 4.0 kHz frequencies, the correlation between ASSR and ABR response thresholds and PTA threshold was good, which was better than that of 40 Hz AERP response threshold.

Conclusion

To evaluate the hearing at 0.5 kHz and 1.0 kHz frequencies, it is recommended to use 40 Hz AERP and ASSR to comprehensively assess the PTA threshold of the subjects. To evaluate the hearing at 2.0 kHz and 4.0 kHz frequencies, ABR and ASSR are recommended to assess the PTA threshold of subjects comprehensively. The combination of ASSR, ABR and 40 Hz AERP can improve the accuracy of hearing function evaluation.

Key words: forensic medicine, pure tone audiometry (PTA), threshold, auditory steady-state response(ASSR), auditory brainstem response (ABR), 40 Hz auditory event related potential (40 Hz AERP)

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