Advertisement

Journal of Comparative Physiology A

, Volume 163, Issue 1, pp 135–143 | Cite as

Ascending auditory interneurons in the cricketTeleogryllus commodus (Walker): comparative physiology and direct connections with afferents

  • R. M. Hennig
Article

Summary

Ascending auditory interneurons of the cricket,Teleogryllus commodus (Walker), were investigated using simultaneous intracellular and extracellular recording in order to identify units which had previously been characterized only by extracellular recording. The morphology and physiology of the large adapting unit (LAU: Fig. 1) and of the small tonic unit (STU: Fig. 2) ofTeleogryllus correspond well to those of the ascending neuron 2 (AN2) and the ascending neuron 1 (AN1) ofGryllus (Figs. 1, 2), respectively.

A summary of the ascending auditory interneurons described by various authors in 5 species of crickets is presented in order to establish common identities.

Physiological evidence for direct connections between auditory afferents and the ascending auditory interneurons AN1 (STU) and AN2 (LAU) is presented. Simultaneous intracellular recordings from receptors and interneurons in response to sound as well as the activity of auditory interneurons upon electrical stimulation of the tympanal nerve reveal short and constant latencies of receptor-evoked synaptic activity in AN1 (STU) and AN2 (LAU).

Keywords

Electrical Stimulation Constant Latency Direct Connection Synaptic Activity Intracellular Recording 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abbreviations

STU

small tonic unit

LAU

large adapting unit

AN

ascending neuron

EPSP

excitatory postsynaptic potential

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Atkins G, Ligman S, Burghardt F, Stout JF (1984) Changes in phonotaxis by the female cricketAcheta domesticus L. after killing identified acoustic interneurons. J Comp Physiol A 154:795–804Google Scholar
  2. Ball EE, Hill KG (1978) Functional development of the auditory system of the cricket,Teleogryllus commodus. J Comp Physiol 127:131–138Google Scholar
  3. Boyan GS (1979) Directional responses to sound in the central nervous system of the cricketTeleogryllus commodus (Orthoptera: Gryllidae). I. Ascending interneurons. J Comp Physiol 130:137–150Google Scholar
  4. Boyan GS (1983) Postembryonic development in the auditory system of the locust. J Comp Physiol 151:499–513Google Scholar
  5. Boyan GS, Williams JLD (1982) Auditory neurones in the brain of the cricketGryllus bimaculatus (De Geer): ascending interneurones. J Insect Physiol 28:493–501Google Scholar
  6. Boyd P, Kühne R, Silver S, Lewis B (1984) Two-tone suppression and song coding by ascending neurones in the cricketGryllus campestris L. J Comp Physiol A 154:423–430Google Scholar
  7. Burrows M (1975) Monosynaptic connexions between wing stretch receptors and flight motoneurones of the locust. J Exp Biol 62:189–219Google Scholar
  8. Eibl E, Huber F (1979) Central projections of tibial sensory fibers within the three thoracic ganglia of crickets (Gryllus campestris L.,G. bimaculatus DeGeer). Zoomorphology 9:1–17Google Scholar
  9. Elsner N, Popov AV (1978) Neuroethology of acoustic communication. Adv Insect Physiol 13:229–355Google Scholar
  10. Hill KG (1974) Carrier frequency as a factor in phonotactic behaviour of female crickets (Teleogryllus commodus). J Comp Physiol 93:7–18Google Scholar
  11. Huber F (1983) Neural correlates of orthopteran and cicada phonotaxis. In: Huber F, Markl H (eds) Neuroethology and behavioral physiology. Springer, Berlin Heidelberg New York, pp 108–135Google Scholar
  12. Hutchings M, Lewis B (1984) The role of two-tone suppression in song coding by ventral cord neurones in the cricketTeleogryllus oceanicus (Le Guillou). J Comp Physiol A 154:103–112Google Scholar
  13. Kühne R, Silver S, Lewis B (1984) Processing of vibratory and acoustic signals by ventral cord neurones in the cricketGryllus campestris. J Insect Physiol 30:575–585Google Scholar
  14. Michelsen A, Larsen ON (1984) Hearing and sound. In: Kerkut GA, Gilbert LI (eds) Nervous system: sensory (Comprehensive insect physiology, biochemistry, and pharmacology, vol 6). Pergamon, Oxford, pp 495–556Google Scholar
  15. Nolen TG, Hoy RR (1987) Postsynaptic inhibition mediates highfrequency selectivity in the cricketTeleogryllus oceanicus: implications for flight phonotaxis behavior. J Neurosci 7:2081–2096Google Scholar
  16. O'Shea M, Adams M (1983) Cited in: Strausfeld NJ (ed) Functional neuroanatomy. Springer, Berlin Heidelberg New York, p 138Google Scholar
  17. Oldfield BP, Kleindienst HU, Huber F (1986) Physiology and tonotopic organization of auditory receptors in the cricketGryllus bimaculatus De Geer. J Comp Physiol A 159:457–464Google Scholar
  18. Pallas SL, Hoy RR (1986) Regeneration of normal afferent input does not eliminate aberrant synaptic connections of an identified auditory interneuron in the cricket,Teleogryllus oceanicus. J Comp Neurol 248:348–359Google Scholar
  19. Pearson KG, Wong RKS, Fourtner CR (1976) Connexions between hair-plate afferents and motoneurones in the cockroach leg. J Exp Biol 64:251–266Google Scholar
  20. Popov AV, Markovich AM (1982) Auditory interneurones in the prothoracic ganglion of the cricket,Gryllus bimaculatus. II. A high-frequency ascending neurone (HF1AN). J Comp Physiol 146:351–359Google Scholar
  21. Popov AV, Shuvalov VF (1974) Time-characteristics of communicative sounds and their analysis in the auditory system of insects. Acustica 31:315–319Google Scholar
  22. Rheinlaender J, Kalmring K, Popov AV, Rehbein HG (1976) Brain projections and information processing of biologically significant sounds by two large ventral cord neurons ofGryllus bimaculatus DeGeer (Orthoptera, Gryllidae). J Comp Physiol 110:251–269Google Scholar
  23. Schildberger K (1984) Temporal selectivity of identified auditory neurons in the cricket brain. J Comp Physiol A 155:171–185Google Scholar
  24. Schildberger K, Wohlers DW, Schmilz B, Kleindienst HU, Huber F (1986) Morphological and physiological changes in central auditory neurons following unilateral foreleg amputation in larval crickets. J Comp Physiol A 158:291–300Google Scholar
  25. Selverston AI, Kleindienst HU, Huber F (1985) Synaptic connectivity between cricket auditory interneurons as studied by selective photoinactivation. J Neurosci 5:1283–1292Google Scholar
  26. Stout JF, Huber F (1972) Responses of central auditory neurons of female crickets (Gryllus campestris L.) to the calling song of the male. Z Vergl Physiol 76:302–313Google Scholar
  27. Stout JF, Huber F (1981) Responses to features of the calling song by ascending auditory interneurones in the cricketGryllus campestris. Physiol Entomol 6:199–212Google Scholar
  28. Stout JF, Atkins G, Burghardt F (1985) The characterization and possible importance for phonotaxis of ‘L’-shaped ascending acoustic interneurons in the cricket (Acheta domesticus). In: Kalmring K, Elsner N (eds) Acoustic and vibrational communication in insects. Parey, Berlin Hamburg, pp 89–100Google Scholar
  29. Wohlers DW, Huber F (1978) Intracellular recording and staining of cricket auditory interneurons (Gryllus campestris L.,G. bimaculatus DeGeer). J Comp Physiol 127:11–28Google Scholar
  30. Wohlers DW, Huber F (1982) Processing of sound signals by six types of neurons in the prothoracic ganglion of the cricket,Gryllus campestris L. J Comp Physiol 146:161–173Google Scholar
  31. Wohlers DW, Huber F (1985) Topographical organization of the auditory pathway within the prothoracic ganglion of the cricketGryllus campestris L. Cell Tissue Res 239:555–565Google Scholar

Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • R. M. Hennig
    • 1
  1. 1.Developmental Neurobiology Group, Research School of Biological SciencesAustralian National UniversityCanberra CityAustralia

Personalised recommendations