Bio- and Psychophysical Audiology as a New Direction of Computer Technologies: The Substantiation and Possibilities

Abstract:

Audiometry, which is currently used in medical practice, is based on the experiments of the last century. Using numerous clinical tests, it's played a major role in the auditory disorders diagnosis. But its capabilities are very limited.Theoretical justification of the experimental facts accumulated by now, today allows to solve many problems of hearing, including the tasks of computational biology. Using the physical processes that are realized at sound transduction in the inner ear, we created an alternative (acoustic-wave) hearing model on pre-receptor level. Its main result is the analytical matching of the sound frequency for the corresponding coordinates of the spiral organ.This cochlear tonotopicity represents the ratio between stimulation frequency f and place l along the cochlea by the equation of the acoustic-wave hearing model at pre-receptors stage l (f) = L_o^.2^{2log (f/fmo)}, where L_o = 32 mm the cochlear duct length, f_mo=20 kHz maxima frequency of audible sound.Biophysically is a substantiated age-related effect which attributable to changes in person perception the sound frequency. Age-related frequencies standards can be represented by f (t)=f_moe^rt, where r=0.01 year¹ high-frequency loss factor sound. Using both relations together, we get the length of the cochlear duct for T years L_T=L_o^.2^{2log (fT/fmo)}. It can help you calculate the new biological parameters of inner ear in prognostic and reconstructive processes of hearing's change and to determine its quality. It can be used in the monitoring study, the effectiveness of therapeutic procedures and any pharmacological and physical therapy interventions, in assessing the impact of environmental factors on the person.The modern complex hearing audiology should be based on all-pass sound generator with constant power, should include the database and displays the information and tools under the new bio-and psychophysical capabilities.

• Periodical: Applied Mechanics and Materials (Volume 481)
• Pages: 194-202
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.481.194
• Online since: December 2013
• Authors: Evgeny L. Ovchinnikov*, Vladislav V. Ivanov, Yuliya V. Ovchinnikova
• Keywords: Acoustic-Wave Hearing Model, Age Standards of Hearing, Age Standards of Inner Ear, Criteria of Inner Ear, Hearing

References

[1] Wegel RL. Physical data and physiology of the auditory nerve. Annals of Otology, Rhinology, and Laryngology, 1932, 41, 740-779.

DOI: 10.1177/000348943204100306

[2] Békésy G von. Über die Hörschwelle und Fühlgrenze langsamer sinusförmiger Luftdruckschwankungen. Ann. of Phys., 1936, 25, 554-556.

DOI: 10.1002/andp.19364180606

[3] Gelfand SA. The Essentials of Audiology. NY, Thieme Med. Publ., (2009).

[4] Fletcher RH, Fletcher SW, Wagner EH. Clinical Epidemiology. The Essentials. 3rd ed. Baltimore, MD: Williams & Wilkins, (1996).

[5] Ovchinnikov EL, Ivanov VV, Ovchinnikova YuV. Acoustic-wave hearing model, initial stage: the sound transduction in the inner ear. European Science and Technology: 3nd International scientific conference, Munich, Germany, 2012, pp.524-535.

[6] Ovchinnikov EL. Age-related changes in the frequency of sound perception: The biophysical basis. 49th Workshop on Inner Ear Biology and Symposium: The Inner Ear in Translational Research: Closing the Gap toward Causal Treatment, Tubingen, Germany, 2012, p.157.

[7] Békésy G von. Experiments in Hearing, NY – Toronto – London: McGraw-Hill Book Co, (1960).

[8] Schuknecht HF. Pathology of the Ear. A Commonwealth Fund Book, Harvard Univ. Press. Cambridge Massachusetts, (1974).

[9] Bekesy G. von. The ear. Sci. Amer., 1957, 197, 66-78.

[10] Pickles JO, Corey DP. Mechanoelectrical transduction by hair cells. TINS, 1992, v. 15, 7, p.254 – 259.

DOI: 10.1016/0166-2236(92)90066-h

[11] Katz J. Introductory fluid mechanics. Cambridge Univ. Press Inc., NY, (2010).