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Updated: Jun 5, 2026
A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
Published on: May 25, 2019
[Stopping criteria for averaging the multiple auditory steady-state response]
Alejandro Torres Fortuny1, María C Pérez Abalo, Roberto C Sotero Díaz
1Departamento de Audición y Lenguaje, Centro de Neurociencias de Cuba, La Habana, Cuba. fortuny@cneuro.edu.cu
This study evaluated averaging techniques for auditory steady-state responses, finding limitations in detecting near-threshold signals. New criteria were proposed to improve auditory steady-state response recording efficiency.
Area of Science:
- Audiology
- Neuroscience
- Signal Processing
Background:
- Auditory steady-state responses (ASSRs) are crucial for assessing auditory function.
- Traditional ensemble averaging may struggle with near-threshold ASSRs.
Purpose of the Study:
- To assess the efficiency of averaging techniques for ASSR estimation in normal hearing.
- To develop quantifiable stopping criteria for ASSR recordings.
Main Methods:
- Simultaneous presentation of multi-frequency amplitude-modulated tones (89-115 Hz) at 40 dB HL.
- Averaging 128 data epochs (23.9 minutes) for analysis.
Main Results:
- Ensemble averaging accurately and efficiently detected most ASSRs but failed with some near-threshold signals.
- A novel method evaluating background noise variance was proposed.
Conclusions:
- Quantitative parameters were suggested to establish stopping criteria for ASSR recordings.
- Improved efficiency and reliability in ASSR measurements are achievable.
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