Auditory sensation via moist contact of the bone vibrator with skin at soft tissue sites
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Miriam Geal-Dor
Abstract
Background: Auditory sensation can be elicited not only by air conduction (AC) with an earphone and by bone conduction by applying a bone vibrator to bony sites on the head, but also by a newly described mode based on applying the bone vibrator to soft tissue sites on the head, neck, and thorax (soft tissue conduction – STC). This study was designed to assess whether it is necessary to compress the skin at the STC sites, which could induce vibrations of the underlying bone.
Methods: In 15 normal-hearing subjects, thresholds were assessed with the bone vibrator in air (control for possible AC), direct contact of the bone vibrator with the mastoid and regions around the lip, and indirect contact (via a cotton wool wick, dry or wet) of the bone vibrator with sites around the lip.
Results: Even though the best (lowest) thresholds were obtained with direct contact, the subjects clearly heard the sound stimulation when presented only by the gentle contact of the wick with the skin, especially when the contact site was moist.
Conclusions: STC stimulation does not require vibrations of the skull bone and seems to involve the transmission of auditory frequency vibrations, through a series of soft tissues, to the inner ear.
©2012 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Masthead
- Masthead
- Mini Review
- Genomic advances for gene discovery in hereditary hearing loss
- Original Articles
- Auditory sensation via moist contact of the bone vibrator with skin at soft tissue sites
- No changes in cochlear implant mapping and audiometric parameters in adolescence
- Auditory working memory and early reading skills in Hebrew-speaking preschool children
- Programme
- Israeli Society for Auditory Research (ISAR) 2012 Annual Scientific Meeting
- Abstracts
- Israeli Society for Auditory Research (ISAR): 2012 Annual Scientific Conference
