Cochlear Nerve Fibre Temporal Discharge Patterns, Cochlear Frequency Selectivity and the Dominant Region for Pitch

  • E. F. Evans
Part of the Nato ASI Series book series (NSSA, volume 119)

Abstract

These experiments continue investigations of the possible role played by the temporal discharge patterns of cochlear nerve fibres in determining the pitch assigned to complex stimuli in previous studies (Evans, 1978; 1983). The experiments concern a class of stimuli originally used by Seebeck, consisting of the pulse train having unequal alternate intervals, studied physiologically by Whitfield (1979, 1980) and Evans (1983a); and considered theoretically by Moore (1980). In the present case, a range of unequal intervals has been chosen from 4.5 and 5.5 ms, through 4.6 and 5.4, 4.8 and 5.2, to equal intervals at 5 ms, in order to establish a continuum of stimuli. At one end of this continuum, 4.5 and 5.5 ms, the pitch of the unfiltered stimulus is predominantly 100 Hz together with a less prominent ambiguous pitch of 180/220 Hz. At the other end, (4.8 and 5.2 ms), and of course, 5 ms, the pitch heard is predominantly 200 Hz, with a weaker 100 Hz. In addition, the stimulus paradigm of Schouten (1940) has been explored, where contrasting pitches are obtained from evenly spaced click trains having in one case pulses of the same polarity and in the other, alternate polarity.

Keywords

Drilling Gall Autocorrelation Acoustics Extractor 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. De Boer, E. (1969). Reverse correlation. II. Initiation of nerve impulses in the inner ear, Proc. kon. nederl. Akad. Wetensch., 72, 129 – 151.Google Scholar
  2. De Boer, E. and De Jongh, H. R. (1978). On cochlear coding: potentialities and limitations of the reverse-correlation technique, J. Acoust. Soc. Am., 63, 115 – 135.PubMedCrossRefGoogle Scholar
  3. Evans, E. F. (1977). Frequency selectivity at high signal levels of single units in cochlear nerve and nucleus, in: Psychophysics and Physiology of Hearing, E. F. Evans and J. P. Wilson, eds.; Academic Press, London, 185 – 192.Google Scholar
  4. Evans, E. F. (1978). Place and time coding frequency in the peripheral auditory system: some physiological pros and cons. Audiol., 17, 369 – 420.CrossRefGoogle Scholar
  5. Evans, E. F. (1979). Single unit studies of the mammalian auditory nerve, in: Auditory Investigations: The Scientific and Technological Basis. H. A. Beagley, ed., Oxford University Press, Oxford, 324 – 367.Google Scholar
  6. Evans, E. F. (1980a). An electronic analogue of single unit recording from the cochlear nerve for teaching and research. J, Physiol. 298, 6 – 7 P.Google Scholar
  7. Evans, E. F. (1980b). ’Phase-locking1 of cochlear fibres and the problem of dynamic range, in: International Symposium on Psychophysical, Physiological and Behavioural Studies in Hearing, G. v.d. Brink and F. Bilsen, eds., Delft University Press, The Netherlands, 300 – 309.CrossRefGoogle Scholar
  8. Evans, E. F. (1981). The dynamic range problem: place and time coding at the level of cochlear nerve and nucleus. In: Neuronal Mechanisms of Hearing, J. Syka and L. Aitken eds., Plenum Press, New York, 69 – 85.CrossRefGoogle Scholar
  9. Evans, E, F. (1982). Representation of complex sounds at cochlear nerve and cochlear nucleus levels, in: Representation of Speech in the Peripheral Auditory System, R. Carlson, B. Granstrom and B. Lindblom, eds., Elsevier Biomedical Press, Amsterdam, 27 – 42.Google Scholar
  10. Evans, E. F. (1983a). Pitch and cochlear fibre temporal discharge patterns, in: Hearing — Physiological Bases and Psychophysics, R. Klinke and R. Hartmann, eds., Springer Verlag, Berlin, Heidelberg, New York, 140 – 145.Google Scholar
  11. Evans, E. F. (1983b). Computer-controlled synthesis of acoustic stimuli and analysis of single unit responses, Brit. J. Audiol., 17, 120.Google Scholar
  12. Evans, E. F. (1984a). Spectral analysis of complex sounds at the auditory periphery, Proc Institute of Acoustics Spring Meeting 1984, Institute of Acoustics, Edinburgh, 431 – 438.Google Scholar
  13. Evans, E. F. (1984b). A method for the simultaneous mapping of rate and synchrony suppression of cochlear nerve fibre discharge patterns, Brit. J. Audiol., 18, 247.Google Scholar
  14. Evans, E. F. (1985). Aspects of the neuronal coding of time in the mammalian peripheral auditory system relevant to temporal resolution, in: Time Resolution in Auditory Systems: 11th Danavox Symposium, A. Michelsen ed., Springer Verlag, Berlin, Heidelberg, New York, 74 – 95.CrossRefGoogle Scholar
  15. Moore, B. C. J. (1980). Neural interspike intervals and pitch, Audiol., 19, 363 – 365.CrossRefGoogle Scholar
  16. Schouten, J. F. (1940). The residue, a new component in subjective sound analysis, Proc. kon. nederl. Akad. Wetensch., 43, 356–365.Google Scholar
  17. Trinder, J. R. (1982). Hardware-software configuration for high performance digital filtering in real time, IEEE Trans, 687 – 690.Google Scholar
  18. Whitfield, I. C. (1979). Periodicity, pulse interval and pitch, Audiol., 18, 507 – 512.CrossRefGoogle Scholar
  19. Whitfield, I. C. (1980). Theory and experiment in so-called pulse interval pitch, Audiol., 20, 86 – 88.CrossRefGoogle Scholar
  20. Bilsen, F.A. (1968). On the interaction of a sound with its repetitions, Ph.D. Thesis, Delft, The Netherlands.Google Scholar
  21. Bilsen, F.A. and Goldstein, J.L. (1974-)• Pitch of dichotically delayed noise and its possible spectral basis, J. Acoust. Soc. Am., 55, 292– 296.Google Scholar
  22. Houtsma, A.J.M. and Goldstein, J.L. (1972). The central origin of the pitch of complex tones: evidence from musical interval recognition, J. Acoust. Soc. Am., 51, 520 – 529.CrossRefGoogle Scholar
  23. Yin, T. and Kuwada, S. (1984.). Neuronal mechanisms of binaural interaction, in: Dynamic Aspects of Neocortical Function, Edelman, G.A., Gall, W.E. and Cowan, W.M., eds., John Wiley and Sons, New York, pp.263–314.Google Scholar
  24. Horst, JW ,, Javel, E., and Farley, G.R., (1986). Extraction and enhancement of spectral stucture by the cochlea, J. Acoust. Soc. Am., 78, 1898–1901 (L).Google Scholar

Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • E. F. Evans
    • 1
  1. 1.Dept. of Communication and NeuroscienceUniversity of KeeleStaffs.UK

Personalised recommendations