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Neuroscience and Behavioral Physiology

, Volume 25, Issue 3, pp 247–251 | Cite as

Neurotransmitter basis of mollusc behavior: Control of choice between the orienting and the defense response to the presentation of an unfamiliar object

  • V. E. D'yakonova
  • D. A. Sakharov
Article

Abstract

The role of the serotoninergic and opioid systems in the choice between a passive defensive and an orienting response of the molluscLymnaea stagnalis to the presentation of an unfamiliar object was studied. Under the influence of 5-HTP, a metabolic precursor of serotonin, orienting and investigatory behavior was activated; the number of protective reactions decreased. Under the influence of naloxone, an antagonist of opiate receptors, the proportion of orienting responses decreased, and the number of passive defensive avoidance and freezing reactions increased. The influence of the agents investigated on the attitude of the snail to a novel object was found to be well coordinated with their influence on other forms of behavior and the behavioral state of the mollusc as a whole.

Keywords

Serotonin Defense Response Naloxone Behavioral State Opioid System 
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.

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • V. E. D'yakonova
  • D. A. Sakharov

There are no affiliations available

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