ArticleJournal of the Association for Research in Otolaryngology : JARO2012
Subharmonic distortion in ear canal pressure and intracochlear pressure and motion.
Article in Journal of the Association for Research in Otolaryngology : JARO, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 11 citations in OpenAlex.
- The onset of nonlinear growth of middle-ear responses to high intensity sounds.Hearing research · 2021Article
- Time-domain and frequency-domain effects of tensor tympani contraction on middle ear sound transmission in gerbil.Hearing research · 2021Article
- Stapes displacement and intracochlear pressure in response to very high level, low frequency sounds.Hearing research · 2017Article
- Safety of the HyperSound® Audio System in Subjects with Normal Hearing.Audiology research · 2015Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
When driven at sound pressure levels greater than ~110 dB stimulus pressure level, the mammalian middle ear is known to produce subharmonic distortion. In this study, we simultaneously measured subharmonics in the ear canal pressure, intracochlear pressure, and basilar membrane or round window membrane velocity, in gerbil. Our primary objective was to quantify the relationship between the subharmonics measured in the ear canal and their intracochlear counterparts. We had two primary findings: (1) The subharmonics emerged suddenly, with a substantial amplitude in the ear canal and the cochlea; (2) at the stimulus level for which subharmonics emerged, the pressure in scala vestibuli/pressure in the ear canal amplitude relationship was similar for the subharmonic and fundamental components. These findings are important for experiments and clinical conditions in which high sound pressure level stimuli are used and could lead to confounding subharmonic stimulation.
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