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[The correlativity between the threshold acquired with ASSR and PTA].
Xiao-Ping Yang1, Li-Hua Fan, Xiao-Rong Zhou
1Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, P.R. China, Shanghai 200063, China. yangxp@ssfjd.cn
Fa Yi Xue Za Zhi
|November 5, 2008
Summary
Auditory steady-state responses (ASSR) show a close correlation with pure tone audiometry (PTA) thresholds across various frequencies and hearing loss levels. This suggests ASSR can objectively evaluate hearing loss, aiding in forensic medicine cases.
Area of Science:
- Audiology
- Neuroscience
- Otolaryngology
Context:
- Hearing threshold assessment is crucial for diagnosing hearing loss.
- Pure tone audiometry (PTA) is a standard but subjective method.
- Auditory steady-state responses (ASSR) offer a potential objective alternative.
Purpose:
- To investigate the correlation between ASSR and PTA thresholds.
- To determine the reliability of ASSR in different hearing loss categories.
Summary:
- Eighty-six subjects underwent both ASSR and PTA testing at 500, 1000, 2000, and 4000 Hz.
- A strong correlation was found between ASSR and PTA thresholds across all tested frequencies and hearing loss degrees.
- Rectified ASSR thresholds provide reliable hearing loss data.
Impact:
- ASSR can serve as an objective measure for hearing loss evaluation.
- This method can assist in distinguishing genuine hearing impairment from malingering in forensic contexts.
- Enhances diagnostic accuracy in audiological assessments.
