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Updated: Jul 15, 2026

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
[The ERA characteristics in normal-hearing persons]
This study measured auditory evoked response (AER) amplitudes and latencies in adults aged 20-70. Findings indicate no significant age-related differences in AER characteristics within this range.
Area of Science:
- Auditory Neuroscience
- Human Physiology
- Audiology
Context:
- Auditory Evoked Responses (AERs) are crucial for assessing auditory pathway function.
- Understanding age-related changes in AERs is vital for diagnosing hearing impairments.
- Previous research has yielded varied results regarding age and AER characteristics.
Purpose:
- To investigate the influence of age on auditory evoked response amplitudes and latencies.
- To compare intra-individual and inter-individual variances in AER measures.
- To analyze the relationship between stimulus intensity and response variability.
Summary:
- Auditory evoked response (AER) amplitudes and latencies were measured in normal-hearing adults across three age groups (20-25, 30-50, 55-70 years).
- Intra-individual variance of amplitudes was significantly lower than inter-individual variance, with both decreasing as stimulus intensity increased.
- No significant differences in amplitudes or latencies were observed between the age groups, suggesting preserved auditory function across the studied lifespan.
- Variational coefficients for latencies, including N1 and P2, showed no significant intra- vs. inter-individual differences and exhibited a minimum at medium stimulus intensity.
Impact:
- Provides normative data for auditory evoked responses in a broad adult age range.
- Suggests that typical aging does not significantly alter basic auditory processing as measured by AERs.
- Highlights the importance of stimulus intensity in interpreting response variability.
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