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A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
Published on: May 25, 2019
[Auditory evoked potentials in individuals over 50 years]
Carla Gentile Matas1, Valdete Alves Valentins dos Santos Filha, Melissa Mitsue Cunha Pires Okada
1Univeisidade Federal de São Paulo, Escola Paulista de Medicina. cgmatas@usp.br
Pro-Fono : Revista De Atualizacao Cientifica
|December 22, 2006
Summary
Aging significantly impacts auditory pathways. Brainstem auditory evoked potentials (PEATE), middle latency auditory evoked potentials (PEAML), and cognitive potential (P300) show age-related changes, affecting hearing system function in older adults.
Area of Science:
- Neuroscience
- Audiology
- Gerontology
Background:
- Auditory evoked potentials (AEPs) are crucial for assessing auditory pathway function.
- Understanding age-related changes in AEPs is vital for diagnosing hearing impairments in older adults.
Purpose of the Study:
- To evaluate brainstem auditory evoked potentials (PEATE), middle latency auditory evoked potentials (PEAML), and cognitive potential (P300) in individuals over 50 years.
- To investigate the effects of aging on auditory pathway function using AEPs.
Main Methods:
- Evaluated 24 subjects (51-74 years) using PEATE and P300; 18 subjects also underwent PEAML.
- Subjects were grouped by age: 50-59 (GI), 60-69 (GII), and 70-79 (GIII).
- Utilized Kruskal-Wallis, Mann-Whitney, and two proportion equality tests for statistical analysis.
Main Results:
- Significant differences in PEATE interpeak I-V latency (GIII) and PEAML Na wave latency (GI) were observed.
- P300 component latency showed statistically significant age-related differences.
- Deterioration in AEP response quality correlated strongly with increased age.
Conclusions:
- The aging process progressively impacts auditory pathways from the brainstem to the temporal lobe.
- Age-related changes in AEPs reflect the functional decline of the auditory system.
