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Organic thresholds and functional components in experimentally simulated exaggerated hearing loss
1Department of Communication Arts and Sciences, Queens College, City University of New York, Flushing 11367.
British Journal of Audiology
|February 1, 1993
Summary
This study simulated nonorganic hearing loss (NOHL) in individuals with sensorineural hearing impairment. Findings suggest NOHL patients use loudness anchors, validating previous clinical observations.
Area of Science:
- Audiology
- Auditory Neuroscience
- Hearing Science
Background:
- Previous research on nonorganic hearing loss (NOHL) relied on resolved cases.
- Most adults with NOHL have underlying sensorineural hearing loss.
- Simulating NOHL in normal-hearing individuals has limitations.
Purpose of the Study:
- To investigate functional overlays in simulated NOHL using subjects with sensorineural hearing loss.
- To explore strategies used by individuals with NOHL to generate exaggerated audiograms.
- To assess the impact of underlying hearing loss on NOHL simulation models.
Main Methods:
- Experimental simulation of NOHL in participants with sensorineural hearing loss.
- Manipulation of simulated functional components across different frequencies.
- Comparison of simulated functional overlays with audiometric configurations.
Main Results:
- Distinct functional overlay configurations correlated with normal hearing, abrupt high-frequency loss, and sloping loss patterns.
- Simulation data supported clinical observations of NOHL patients using loudness-based anchors.
- The study demonstrated that simulated functional components can replicate clinical findings.
Conclusions:
- Individuals with NOHL often employ an internalized, loudness-based anchor for audiogram exaggeration.
- Simulations of NOHL are more representative when using hearing-impaired participants.
- Future NOHL simulations should prioritize the inclusion of individuals with existing hearing impairments.