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Normative values for brain stem auditory evoked potentials obtained by digital filtering and automatic peak detection
Electroencephalography and Clinical Neurophysiology
|August 1, 1982
Summary
A new Brainstem Auditory Evoked Response (BAEP) test aids in screening auditory processing disorders. This method uses digital filtering and automatic peak detection to analyze BAEP latencies, establishing normative values for diagnosis.
Area of Science:
- Neuroscience
- Audiology
- Biomedical Engineering
Background:
- Auditory information processing disorders require reliable diagnostic tools.
- Existing screening methods may lack precision in identifying subtle auditory pathway issues.
Purpose of the Study:
- To develop and validate a Brainstem Auditory Evoked Response (BAEP) test for preliminary screening of auditory processing problems.
- To establish normative measures for BAEP component latencies.
Main Methods:
- Utilized constant, high-level click stimulation for BAEP testing.
- Employed digital filtering and automatic peak detection for latency analysis.
- Analyzed data from 148 BAEP tests to derive normative values.
Main Results:
- Established normative measures including absolute peak latency, interpeak latency, and left-right peak latency difference.
- Developed a set of threshold values for selected BAEP measures to evaluate test outcomes.
- Demonstrated the utility of the developed BAEP test in analyzing auditory pathway function.
Conclusions:
- The developed BAEP test provides a reliable method for preliminary screening of auditory processing disorders.
- Normative data and threshold values enhance the diagnostic accuracy of BAEP testing.
- This approach aids in the objective evaluation of auditory information processing.