D'yakonova V E, Sakharov D A
N. K. Kol'tsov Institute of Developmental Biology, Russian Academy of Medical Sciences, Moscow.
Neurosci Behav Physiol. 1995 May-Jun;25(3):247-51. doi: 10.1007/BF02360213.
The role of the serotoninergic and opioid systems in the choice between a passive defensive and an orienting response of the mollusc Lymnaea 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.
研究了血清素能系统和阿片系统在淡水螺对呈现陌生物体时的被动防御反应和定向反应选择中的作用。在血清素的代谢前体5-羟色氨酸的影响下，定向和探究行为被激活；保护反应的数量减少。在阿片受体拮抗剂纳洛酮的影响下，定向反应的比例下降，被动防御性回避和僵住反应的数量增加。发现所研究的药物对蜗牛对新物体态度的影响与其对其他行为形式以及整个软体动物行为状态的影响密切相关。
