Advertisement

Naturwissenschaften

, Volume 86, Issue 9, pp 435–437 | Cite as

Effects of Serotonergic and Opioidergic Drugs on Escape Behaviors and Social Status of Male Crickets

  • V. E. Dyakonova
  • F.-W. Schürmann
  • D. A. Sakharov
Short Communications

Abstract

 We examined the effects of selective serotonin depletion and opioid ligands on social rank and related escape behavior of the cricket Gryllus bimaculatus. Establishment of social rank in a pair of males affected their escape reactions. Losers showed a lower and dominants a higher percentage of jumps in response to tactile cercal stimulation than before a fight. The serotonin-depleting drug α-methyltryptophan (AMTP) caused an activation of the escape reactivity in socially naive crickets. AMTP-treated animals also showed a lower ability to become dominants. With an initial 51.6±3.6% of wins in the AMTP group, the percentage decreased to 26±1.6% on day 5 after injection. The opiate receptor antagonist naloxone affected fight and escape similarly as AMTP. In contrast to naloxone, the opioid agonist [d-Ala2, N-Me-Phe4, Gly5-ol]-enkephalin decreased escape responsiveness to cercal stimulation in naive and subordinate crickets. We suggest that serotonergic and opioid systems are involved in the dominance induced depression of escape behavior.

Keywords

Naloxone Selective Serotonin Opioid System Opiate Receptor Social Rank 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • V. E. Dyakonova
    • 1
  • F.-W. Schürmann
    • 1
  • D. A. Sakharov
    • 2
  1. 1.Institut für Zoologie und Anthropologie, Universität Göttingen, Göttingen, GermanyDE
  2. 2.Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Str. 26, 117808 Moscow, RussiaRU

Personalised recommendations