Efeitos da Quantização dos Sinais de EEG na Detecção da Resposta Auditiva em Regime Permanente

  • T. Zanotelli Instituto Federal do Espírito Santo, Campus São Mateus, ES
  • A. Floriano Instituto Federal do Espírito Santo, Campus São Mateus, ES
  • T. R. Botelho Instituto Federal do Espírito Santo, Campus São Mateus, ES
  • C. L. S. Tavares Instituto Federal do Espírito Santo, Campus São Mateus, ES
  • L. B. Felix Universidade Federal de Viçosa, MG
Keywords: ASSR, EEG, ORD, Quantization, Audiometry

Abstract

Auditory Steady-State Responses (ASSRs) are an option for an audiometry assessment without subjective interference from patients and evaluators, because the presence of these brain patterns are objectively inferred by applying an Objective Response Detection (ORD) technique to the electroencephalography data (EEG). This work analyzes the variation in the number of bits for the quantization of EEG signals in the detection of ASSRs, in order to find an optimal value of bits that does not compromise the audiometric test. The results showed that there was no significant difference in the audiometry results, in relation to the original data, using a 12-bit encoding.
Published
2021-10-20
Section
Articles