Journal of comparative physiology

, Volume 109, Issue 1, pp 101–122 | Cite as

Die Informationsverarbeitung tympanaler Rezeptorelemente vonLocusta migratoria (Acrididae, Orthoptera)

  • Heiner Römer

Processing of information by tympanal receptors ofLocusta migratoria (Acrididae, Orthoptera)


  1. 1.

    The reactions of tympanic nerve fibers ofLocusta migratoria were recorded by glass microelectrodes in the metathoracic ganglion.

  2. 2.

    The units were classified by frequency-, intensity-, and directional characteristics as well as by their response pattern. The response to speciesspecific song is compared with the response to song ofEphippiger ephippiger.

  3. 3.

    The physiological properties lead to a classification into three types of low-frequency neurons (characteristic frequency 3.5–4 kHz; 4kHz; 5.5–6 kHz) and one type of high-frequency neuron (12–20 kHz). This is similar to other species (Gray, 1960, Michelsen, 1971).

  4. 4.

    Intensity-coding is done by sharp rising intensity characteristics and by different absolute thresholds of the units.

  5. 5.

    There is a marked directional sensitivity with some differences between LF and HF units. In the low frequency range the tympanal organ seems to react as a pressure gradient receiver; for high frequencies another mechanism is discussed.

  6. 6.

    No filtering of species-specific song takes place at the level of the receptor cells.



Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Adam, L.J.: Neurophysiologie des Hörens und Bioakustik einer Feldheuschrecke (Locusta migratoria). Z. vergl. Physiol.63, 227–289 (1969)Google Scholar
  2. Adam, L.J., Schwartzkopff, J.: Getrennte nervöse Repräsentation für verschiedene Tonbereiche im Protocerebrum vonLocusta migratoria. Z. vergl. Physiol.54, 246–255 (1967)Google Scholar
  3. Autrum, H.: Über Gehör- und Erschütterungssinn bei Loeustiden. Z. vergl. Physiol.28, 580–637 (1941)Google Scholar
  4. Autrum, H., Schwartzkopff, J., Swoboda, H.: Der Einfluß der Schallrichtung auf die Tympanalpotentiale vonLocusta migratoria. Biol. Zbl.80, 385–402 (1961)Google Scholar
  5. Dörrscheidt, G. J.: Statistical modulation analysis of animal sounds as a basis for computer synthesised quasi —natural stimuli in bioacoustical research. Proc. 2nd. Seminar on Experimental Simulating and Solving of Probality Problems. Prag 1973 (in press)Google Scholar
  6. Gray, E.G.: The fine structure of the insect ear. Phil. Trans. B243, 75–94 (1960)Google Scholar
  7. Haskell, P.T.: Hearing in certain Orthoptera. I. Physiology of sound receptors. II. The nature of the response of certain receptors to natural and imitation stridulation. J. exp. Biol.33, 756–776 (1956)Google Scholar
  8. Haskell, P.T.: Stridulation and associated behaviour in certain Orthoptera. I. Analysis of the stridulation of, and the behaviour between males. Brit. J. Anim. Behav.5, 139–148 (1957)Google Scholar
  9. Helversen, D. von: Gesang des Männchens und Lautschema des Weibchens bei der FeldheuschreckeChortippus biguttulus (Orthoptera, Acrididae). J. comp. Physiol.81, 381–422 (1972)Google Scholar
  10. Horridge, G.A.: Pitch discrimination in Orthoptera (Insecta) demonstrated by responses of central auditory neurons. Nature (Lond.)185, 623–624 (1960)Google Scholar
  11. Horridge, G.A.: Pitch discrimination in locusts. Proc. roy. Soc. B155, 218–231 (1961)Google Scholar
  12. Kalmring, K.: Akustische Neuronen im Unterschlundganglion der WanderheuschreckeLocusta migratoria. Z. vergl. Physiol.72, 95–110 (1971)Google Scholar
  13. Kalmring, K., Rheinländer, J., Römer, H.: Akustische Neuronen im Bauchmark vonLocusta migratoria. Der Einfluß der Schallrichtung auf die Antwortmuster. J. comp. Physiol.80, 325–352 (1972)Google Scholar
  14. Katsuki, Y.: Neural mechanisms of hearing in cats and insects. In: Electrical activity of single cells (ed. Y. Katsuki) pp. 53–75. Tokyo: Iga Kushuin 1960Google Scholar
  15. Michelsen, A.: Pitch discrimination in the locust ear: Observations on single cells. J. Insect Physiol.12, 1119–1131 (1966)Google Scholar
  16. Michelsen, A.: The physiology of the locust ear. I. Frequency sensitivity of single cells in the isolated ear. II. Frequency discrimination based upon resonances in the tympanum. III. Acoustical properties of the intact ear. Z. vergl. Physiol.71, 49–128 (1971)Google Scholar
  17. Murray, M.J.: Fibre groups in the auditory nerve of the locust. Nature (Lond.)218, 95–96 (1968)Google Scholar
  18. Popov, A.V.: Electrophysiological studies on the peripheral auditory neurons in the locust (in Russian). J. evol. biochem. Physiol.1, 239–250 (1965)Google Scholar
  19. Popov, A.V.: Synaptic transmission at the level of the first synapses of the auditory system inLocusta migratoria [in Russian]. In: Evolutionary neurophysiology and neurochemistry (ed. E.M. Krebs). Leningrad: Nauka 1967Google Scholar
  20. Rehbein, H.G.: Experimentell-anatomische Untersuchungen über den Verlauf der Tympanalnervenfasern im Bauchmark von Feldheuschrecken, Laubheuschrecken und Grillen. Verh. dtsch. Zool. Ges.66, 184–189 (1973)Google Scholar
  21. Rehbein, H.G., Kalmring, K., Römer, H.: Structure and function of acoustic neurons in the thoracic ventral nerve cord ofLocusta migratoria (Acrididae). J. comp. Physiol.95, 263–280 (1974)Google Scholar
  22. Rheinländer, J.: Transmission of acoustic information at three neuronal levels in the auditory system ofDecticus verrucivorus (Tettigoniidae, Orthoptera). J. comp. Physiol.97, 1–53 (1975)Google Scholar
  23. Rheinländer, J., Kalmring, K.: Die afferente Hörbahn im Bereich des Zentralnervensystems vonDecticus verrucivorus (Tettigoniidae). J. comp. Physiol.85, 361–410 (1973)Google Scholar
  24. Suga, N.: Peripheral mechanism of hearing in locust. Jap. J. Physiol.10, 533–546 (1960)Google Scholar

Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • Heiner Römer
    • 1
  1. 1.Institut für Allgemeine und Systematische Zoologie der Universität HohenheimStuttgart 70Bundesrepublik Deutschland

Personalised recommendations