Volume 30 #2

Contents

1. Results and future trends of sensory perception researches with the use of focused ultrasound
2. Auditory detection and classification of amplitude modulation: psychophysical and electrophysiological data
3. Features of speech describing tactile perceived fragmentary images by teenagers with normal and impaired vision
4. Spatial resolution of human auditory system in case of localization of approaching and withdrawing continuous and broken sound images
5. Age-dependent dynamic of sensitivity to androstenone in females
6. The reactions of the ensemble of the auditory nerve fibers in the growth of loudness and intensity discrimination of the efficient pulses presented before and after the disturb pulses

In this paper it has been compared the profiles of two types of the grouped responses of the ensemble of the 100 models of the auditory nerve fibers received in reply on a sound complex “the disturb pulse – the efficient pulse”. The first group reaction (post stimulus histogram) assessed the frequency of occurrence of spike responses in ensemble of fibers in time, the second (histogram of the interspike interval distribution) – the frequency of occurrence of certain interspike intervals in the same ensemble. The disturb pulse could stay ahead the efficient pulse or follow him. The duration of both pulses, as well as the interval between their origins were 10 and 50 ms. The center frequency of both pulses was equal to 4 kHz and corresponded to the characteristic frequency of the fiber models included in the ensemble. Profiles of both histograms have two maxima. The size and position of the maxima in the post-stimulus histogram corresponds to the size and absolute position the disturb and efficient pulses. However, it was not true for the sizes and positions of the maxima in the histogram distribution interspike intervals. The magnitude of the first maximum of the last histogram accounted for short time intervals corresponding to the duration of the disturb pulses and efficient pulses and can combine information about its. The magnitude of the second maximum was formed taking into account the lowest amplitude of the disturb pulse or the efficient pulse. That maximum was at the intervals, corresponding to the relative delay between pulses and did not depend on their absolute position. A linear change in the amplitude of the efficient pulse (the amplitude of the disturb pulse was fixed) led to non-linear changes in the magnitude of the two maxima of the second histogram. It has been suggested that the first maximum in the interspike interval distribution could be the basis for the formation of the efficient pulse’s loudness, a second maximum – the basis for the formation of the pitch periodicity of the complexes. In light of these assumptions, the nonlinear changes of two peaks, leading to changes in two subjective qualities of the complexes, could explain the well-known effect of the growth of loudness and intensity discrimination of the efficient pulses, presented before and after the disturb pulse.

Key words: simulation, ensemble reaction of auditory nerve fibers, masking of pulse by pulnoise, histogram of distribution of inter-spike intervals, post-stimulus histogram

References:

• Avakyan R.V., Radionova E.A. The spectral features of differential intensity threshold for brief sound signal // Acoust. zhurn. 1962. V. 8. No 4. P. 407–411 [in Russian].
• Dubrovskii N.A., Rimskaya- Korsakova L.K. Model parameters of auditory neurons involved in sound modulation discrimination: natural impulse periodicity // Acoust. zhurn. 1997. V. 43. С. 492–500 [in Russian].
• Dubrovskii N.A., Rimskaya-Korsakova L.K. Model parameters of auditory neurons involved in the detection of modulated tones: dynamic and modulation gain vs. frequency characteristics// Acoust.zhurn. 1998. V. 44. P. 213–219 [in Russian].
• Rimskaya-Korsakova L.K. Auditory peripheral adaptation in intensity discrimination of short, high- frequency stimuli// Sensornie systemi. 2007. V. 21. No 4. Р. 286–298 [in Russian)
• Rimskaya-Korsakova L.K. Influence of peripheral encoding on auditory intensity discrimination of short high-frequency stimuli under forward masking condition // Sensornie systemi. 2009. V. 23. No 2. P. 106–116 [in Russian].
• Rimskaya-Korsakova L.K. Peripheral coding and discrimination of level changes of short high-frequency stimulus under forward masking// Sensornie systemi. 2011. V. 25. No 4. 305–318 [in Russian].
• Rimskaya-Korsakova L.K. Peripheral basis of auditory discrimination of changes in the intensity of pulsed sounds presented in silence and after noise exposure // Memoirs of the Faculty of Physics. 2014. V. 5. No 145350. http://uzmu.phys.msu.ru/toc/2014/5 [in Russian].
• Rimskaja-Korsakova L.K., Bibikov N.G. Simulation of auditory nerve fiber’s reactions on signals reproducing electric stimulation of cochlea implants // Proced. of XVIII session of the Russian acoustical society. Moscow. GEOS. 2006. V. 3. P. 593–596 [in Russian].
• Rimskaya-Korsakova L.K., Telepnev V.N., Dubrovksii N.A. Dynamic encoding of amplitude- modulated sounds at the level of auditory nerve fibers // Russian physiological journal namely I.M. Sechenova. 2003. V. 6. P. 700–714 [in Russian].
• Baer T., Moore B.C.J., Glasberg B.R. Detection and in- tensity discrimination of Gaussian-shaped tone pulses as a function of duration // J. Acoust. Soc. Am. 1999. V. 106. P. 1907–1916.
• de Boer E. Auditory time constants: A paradox? // Time Resolution in Auditory Systems / Ed. A. Michelsen. Springer-Verlag, Berlin. 1985. P. 141–158.
• Carlyon R.P., Beveridge H.A. Effects of forward masking on intensity discrimination, frequency discrimination, and the detection of tones in noise // J. Acoust. Soc. Am. 1993. V. 93. P. 2886–2895.
• Carlyon R.P., Moore B.C. Intensity discrimination: a se- vere departure from Weber’s law // J. Acoust. Soc. Am. 1984. V. 76. P. 1369–1376.
• Cohen A., Further investigation of the effects of intensi- ty upon the pitch of pure tones // J. Acoust. Soc. Am. 1961. V. 33. P. 1363–1376.
• Durlach N.I., Braida L.D. Intensity perception. I. Prelim- inary theory of intensity resolution // J. Acoust. Soc. Am. 1969. V. 46. P. 372–383.
• Eggermont J.J. Auditory Temporal Processing and its Disorders. OUP Oxford. 2015. P.368.
• Frisina R.D. Subcortical neural coding mechanisms for auditory temporal processing // Hear. Res. 2001. V. 158. P. 1–27.
• Galambos R., Bauer J., Picton T., Squires K., Squires N.
• Loudness enhancement following contralateral stimula- tion // J. Acoust. Soc. Am. 1972. V. 52. P. 1127–1130.
• Green D.M. Auditory detection of a noise signal // J. Acoust. Soc. Am. 1960. V. 32. P. 121–131.
• Green D.M. Temporal factors in psychoacoustics // Time Resolution in Auditory Systems / Ed. A. Michelsen. Springer-Verlag, Berlin. 1985. P. 122–140.
• Houtsma A.J., Goldstein J.L. The central origin of the pitch of complex tones. Evidence from music interval recognition // J. Acoust. Soc. Amer. 1972. P. 520–529.
• Irwin R.J., Zwisklocki J.J. Loudness effects in pairs of tone bursts // Percept. Psychophys. 1971. V. 10. P. 189– 192.
• Joris P.X., Yin T.C.T. Responses to amplitude-modulated tones in the auditory nerve of the cat. // J. Acoust. Soc. Am. 1992. V. 9. P. 215–232.
• Liberman M.C. Auditory nerve responses from cats raises in a low-noise chamber // J. Acoust. Soc. Am. 1978. V. 6. P. 442–455.
• McGill W.J., Goldberg J.P. A study of the near miss to We- ber’s law and pure-tone intensity discrimination // Per- cept. Psychophys. 1968. V.4. P. 105–109.
• Moore B.C.J. An Introduction to the Psychology of Hear- ing. London. Acad. Press, 1997.
• Nizami L., Reimer J.F., Jesteadt W. The intensity-differ- ence limen for Gaussian-enveloped simuli as a func- tion of level: tones and broadband noise // J. Acoust. Soc. Am. 2001. V. 110. No 5. Pt. 1. P. 2505–2515.
• Oberfeld D. Loudness changes induced by a proximal sound: Loudness enhancement, loudness recalibration, or both? // J. Acoust. Soc. Am. 2007. V. 121. P. 2137– 2148.
• Oberfeld D. The mid-difference hump in forward-masked intensity discrimination // J. Acoust. Soc. Am. 2008. V. 123. P. 1574–1581.
• Plack C.J. Loudness enhancement and intensity discrim- ination under forward and backward masking // J. Acoust. Soc. Am. 1996а. V. 100. P. 1024–1030.
• Plack C.J. Temporal factors in referential intensity cod- ing // J. Acoust. Soc. Am. 1996б. V. 100. P. 1031– 1042.
• Plack C.J., Carlyon R.P., Viemeister N.F. Intensity dis- crimination under forward and backward masking: Role of referential encoding // J. Acoust. Soc. Am. 1995. V. 97. P. 1141–1149.
• Plack C.J., Viemeister N.F. Intensity discrimination under backward masking // J. Acoust. Soc. Am. 1992. V. 92. P. 3097–3101.
• Plomp R. Auditory psychophysics // Annu. Rev. Psychol. 1975. V. 26. P. 207–232.
• Raab D.H., Taub H.B. Click-intensity discrimination with and without a background masking noise // J. Acoust. Soc. Am. 1969. V. 46. P. 965–968.
• Relkin E.M., Doucet J.R. Recovery from prior stimula- tion. I. Relationship to spontaneous firing rates of pri- mary auditory neurons // Hearing Res. 1991. V. 55. P. 215–222.
• Sachs M.B., Abbas P.J. Rate versus level functions for au- ditory-nerve fiber in cats: tone burst stimuli // J. Acoust. Soc. Am. 1974. V. 56. P. 1835–1847.
• Schlauch R.S., Lanthier N., Neve J. Forward-masked in- tensity discrimination: Duration effects and spectral ef- fects // J. Acoust. Soc. Am. 1997. V. 102. Р. 461–467.
• Schlauch R.S., Clement B.R., Ries D.T., DiGiovanni J.J. Masker laterally and cueing in forward-masked inten- sity discrimination // J. Acoust. Soc. Am. 1999. V. 105. P. 822–828.
• Stevens S.S. The relation of pitch to intensity // J. Acoust. Soc. Amer. 1935. V. 6. P. 150–154.
• Zeng F.-G., Turner C.W., Relkin E.M. Recovery from prior stimulation. II. Effects upon intensity discrimination // Hearing Res. 1991. V. 55, P. 223–230.
• Zeng F.-G., Shannon R.V. Possible origins of the non- monotonic intensity discrimination function in forward masking // Hearing Res. 1995. V. 82. P. 216–224.
• Zeng F.-G. Loudness growth in forward masking: Relation to intensity discrimination // J. Acoust. Soc. Am. 1994. V. 96. P. 2127–2132.
• Zwislocki J. J., Sokolich W. G. On loudness enhancement of a tone burst by a preceding tone burst by a preceding tone burst // Percept.Psychophys. 1974. V. 16. P. 87– 90.
• Winter I.M., Robertson D., Yates G.K. Diversity of char- acteristic frequency rate-intensity functions in guinea pig auditory nerve fibers // Hearing Res. 1990. V. 45. P. 191–202.
• Yates G.K., Manley G.A., Koppl C. Rate-intensity func- tions in the emu auditory nerve // J. Acoust. Soc. Am. 2000. V. 107. P. 2143–2154.
• Van Schijndel N.H., Houtgast T., Festen J.M. Intensity discrimination of Gaussian-windowed tones: indication for the shape of the auditory frequency-time window // J. Acoust. Soc. Am. 1999. V. 105. P. 3425–3435.
• Viemeister N.F. Temporal modulation transfer functions based upon modulation thresholds // J. Acoust. Soc. Am. 1979. V. 66. P. 1364–1380.