Abstract
Soft tissue conduction (STC) is a recently expounded mode of auditory stimulation in which the clinical bone vibrator delivers auditory frequency vibratory stimuli to skin sites on the head, neck, and thorax. Investigation of the mechanism of STC stimulation has served as a platform for the elucidation of the mechanics of cochlear activation, in general, and to a better understanding of several perplexing auditory phenomena. This review demonstrates that it is likely that the cochlear hair cells can be directly activated at low sound intensities by the fluid pressures initiated in the cochlea; that the fetus in utero, completely enveloped in amniotic fluid, hears by STC; that a speaker hears his/her own voice by air conduction and by STC; and that pulsatile tinnitus is likely due to pulsatile turbulent blood flow producing fluid pressures that reach the cochlea through the soft tissues.
References
1. Kaufmann M, Adelman C, Sohmer H. Mapping at sites on bone and soft tissue on the head, neck and thorax at which a bone vibrator elicits auditory sensation. Audiol Neurootol Extra 2012;2:9–15.10.1159/000336159Search in Google Scholar
2. Vento BA, Durrant JD. Assessing bone conduction thresholds in clinical practice. In: Katz J, Burkard R, Hood L, Medwetsky L, editors. Handbook of clinical audiology, 6th ed. Baltimore, MD: Lippincott, Williams & Wilkins, 2009.Search in Google Scholar
3. Berger EH, Kieper RW, Gauger D. Hearing protection: surpassing the limits to attenuation imposed by the bone-conduction pathways. J Acoust Soc Am 2003;114:1955–67.10.1121/1.1605415Search in Google Scholar
4. Cooper NP, Rhodes WS. Fast travelling waves, slow travelling waves and their interactions in experimental studies of apical cochlear mechanics. Auditory Neurosci 1996;2:289–99.Search in Google Scholar
5. Olson ES. Fast waves, slow waves and cochlear excitation. J Acoust Soc Am 2013;133:3508, Abstract.10.1121/1.4806254Search in Google Scholar
6. Olson ES. Fast waves, slow waves and cochlear excitation. Proceedings of Meetings of Acoustics 2013;19:1–19.10.1121/1.4799326Search in Google Scholar
7. Perez R, Adelman C, Chordekar S, Ishai R, Sohmer H. Air, bone and soft tissue excitation of the cochlea in the presence of severe impediments to ossicle and window mobility. Eur Arch Otorhinolaryngol 2014. doi:10.1007/s00405-014-2887-8. Epub ahead of print.10.1007/s00405-014-2887-8Search in Google Scholar
8. Geal-Dor M, Shore AF, Sohmer H. Auditory sensation via moist contact of the bone vibrator with skin at soft tissue sites. J Basic Clin Physiol Pharmacol 2012;23:99–101.10.1515/jbcpp-2012-0035Search in Google Scholar
9. Chordekar S, Perez R, Adelman C, Sohmer H. Assessment of inner ear bone vibrations during auditory stimulation by bone conduction and by soft tissue conduction. J Basic Clin Physiol Pharmacol 2013;24:201–4.10.1515/jbcpp-2013-0058Search in Google Scholar
10. Stenfelt S, Goode RL. Bone-conducted sound: physiological and clinical aspects. Otol Neurotol 2005;26:1245–61.10.1097/01.mao.0000187236.10842.d5Search in Google Scholar
11. Gerhardt KJ, Huang X, Arrington KE, Meixner K, Abrams RM, Antonelli PJ. Fetal sheep in utero hear through bone conduction. Am J Otolaryngol 1996;17:374–9.10.1016/S0196-0709(96)90069-1Search in Google Scholar
12. Gerhardt KJ, Abrams RM. Fetal exposures to sound and vibroacoustic stimulation. J Perinatol 2000;20:S21–30.10.1038/sj.jp.7200446Search in Google Scholar PubMed
13. Sohmer H, Perez R, Sichel JY, Priner R, Freeman S. The pathway enabling external sounds to reach and excite the fetal inner ear. Audiol Neurootol 2001;6:109–6.10.1159/000046817Search in Google Scholar
14. Opperman LA. Cranial sutures as intramembranous bone growth sites. Dev Dyn 2000;219:472–85.10.1002/1097-0177(2000)9999:9999<::AID-DVDY1073>3.0.CO;2-FSearch in Google Scholar
15. Adelman C, Perez R, Sohmer H. Effect on auditory threshold of air and water pockets bordering the pathway between soft tissue stimulation sites and the cochlea. Ann Otol Rhinol Laryngol 2013;122:524–8.10.1177/000348941312200808Search in Google Scholar
16. Hemila S, Nummela S, Reuter T. Anatomy and physics of the exceptional sensitivity of dolphin hearing (Odontoceti: Cetacea). J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2010;196:165–79.10.1007/s00359-010-0504-xSearch in Google Scholar
17. Kraus HJ, Aulbach-Kraus K. Morphological changes in the cochlea of the mouse after the onset of hearing. Hear Res 1981;4:89–102.10.1016/0378-5955(81)90038-1Search in Google Scholar
18. Pujol R. Morphology, synaptology and electrophysiology of the developing cochlea. Acta Otolaryngol Suppl 1985;421: 5–9.10.3109/00016488509121751Search in Google Scholar
19. Lavigne-Rebillard M, Pujol R. Hair cell innervation in the fetal human cochlea. Acta Otolaryngol 1988;105:398–402.10.3109/00016488809119492Search in Google Scholar
20. Nakamura K, Yuge K. Studies on fibrous tissues of the basilar membrane in inner ear. Auris Nasus Larynx 1982;9: 133–43.10.1016/S0385-8146(83)80015-7Search in Google Scholar
21. Reinfeldt S, Ostli P, Hakansson B, Stenfelt S. Hearing one’s own voice during phoneme vocalization – transmission by air and bone conduction. J Acoust Soc Am 2010;128:751–62.10.1121/1.3458855Search in Google Scholar
22. Baun J. Physical principles of general and vascular sonography. San Francisco, California: Pro Son Publishing, 2004.Search in Google Scholar
23. Hofmann E, Behr R, Neumann-Haefelin T, Schwager K. Pulsatile tinnitus: imaging and differential diagnosis. Dtsch Arztebl Int 2013;110:451–8.Search in Google Scholar
24. Levine RA. Tinnitus: diagnostic approach leading to treatment. Semin Neurol 2013;33:256–9.10.1055/s-0033-1354603Search in Google Scholar
25. De Ridder D, Vanneste S, Menovsky T. Pulsatile tinnitus due to a tortuous siphon-like internal carotid artery successfully treated by arterial remodeling. Case Rep Otolaryngol 2013;2013:938787.10.1155/2013/938787Search in Google Scholar PubMed PubMed Central
26. Iacovidou A, Giblett N, Doshi J, Jindal M. How reliable is the “scratch test” versus the Weber test after tympanomastoid surgery? Otol Neurotol 2014;35:762–3.10.1097/MAO.0000000000000357Search in Google Scholar PubMed
©2014 by De Gruyter
Articles in the same Issue
- Frontmatter
- Editorial
- Israel Society for Auditory Research (ISAR): 2014 Annual Scientific Conference
- Mini Review
- Investigation of the mechanism of soft tissue conduction explains several perplexing auditory phenomena
- Original Articles
- The mechanism of direct stimulation of the cochlea by vibrating the round window
- Auditory-evoked cortical activity: contribution of brain noise, phase locking, and spectral power
- Rapid adaptation to time-compressed speech in young and older adults
- Apparent phenotypic anticipation in autosomal dominant connexin 26 deafness
- The effect of gender on a frequency discrimination task in children
- Auditory Behavior in Everyday Life (ABEL) questionnaire in Hebrew and in Arabic and its association with clinical tests in cochlear-implanted children
- Short-term learning effect in different psychoacoustic measures
- How difficult is difficult? Speech perception in noise in the elderly hearing impaired
- Congress Abstracts
- Israel Society for Auditory Research (ISAR) 2014 Annual Scientific Conference
Articles in the same Issue
- Frontmatter
- Editorial
- Israel Society for Auditory Research (ISAR): 2014 Annual Scientific Conference
- Mini Review
- Investigation of the mechanism of soft tissue conduction explains several perplexing auditory phenomena
- Original Articles
- The mechanism of direct stimulation of the cochlea by vibrating the round window
- Auditory-evoked cortical activity: contribution of brain noise, phase locking, and spectral power
- Rapid adaptation to time-compressed speech in young and older adults
- Apparent phenotypic anticipation in autosomal dominant connexin 26 deafness
- The effect of gender on a frequency discrimination task in children
- Auditory Behavior in Everyday Life (ABEL) questionnaire in Hebrew and in Arabic and its association with clinical tests in cochlear-implanted children
- Short-term learning effect in different psychoacoustic measures
- How difficult is difficult? Speech perception in noise in the elderly hearing impaired
- Congress Abstracts
- Israel Society for Auditory Research (ISAR) 2014 Annual Scientific Conference