Learning and orientation to odor in the bug Rhodnius prolixus Stal 1859 under laboratory conditions
Learning and orientation to odor in the bug Rhodnius prolixus Stal 1859 under laboratory conditions
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DOI：
10.1007/s00436-008-1014-4
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发表时间：
2008-08-01
影响因子：
2
通讯作者：
Sulbaran-Romero, E.
中科院分区：
文献类型：
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作者：
Aldana, E.;Abramson, C. I.;Sulbaran-Romero, E.
两个实验研究的学习和方向的锥蝽Rhodnius prolixus。实验一研究巴甫洛夫条件反射。该实验与我们以前的工作不同，条件和非条件刺激的强度降低，训练试验的次数增加。在实验2中，我们开发了一个“定向竞技场”，在这个“定向竞技场”中，R.当前臂的一个区域被鲁达或阿密兹克勒的气味浸渍时，与没有气味的前臂相比，研究了人前臂的食欲不振。使用网格系统对动物从竞技场底部直到上升并刺穿位于竞技场顶部的前臂的各种路径进行评分并录像。结果表明，在无臭条件下，R. prolixus主要沿直线从竞技场的底部行进到前臂所在的顶部。相比之下，最可变的路径数发生与暴露于鲁达。暴露于almizcle引起直线路径，但其他路径是明显的，虽然没有观察到与鲁达变量。
Two experiments are described investigating learning and orientation in the triatomine Rhodnius prolixus. In experiment 1, Pavlovian conditioning was investigated. The experiment differed from our previous work in that the intensity of the conditioned and unconditioned stimuli were reduced and the number of training trials increased. Once again, no evidence for Pavlovian conditioning was found. In experiment 2, an "orientation arena" was developed in which the orientation of R. prolixus to a human forearm was investigated when an area of the forearm was impregnated with the odor of ruda or almizcle compared to a forearm with no odor. The various paths of the animal from the bottom of the arena until ascending and piercing the forearm, located at the top of the arena, was scored using a grid system and videotaped. The results indicated that under the no odor condition R. prolixus predominately travels in a straight line from the bottom of the arena to the top where the forearm is located. In contrast, the most variable number of paths occurred with exposure to ruda. Exposure to almizcle elicited straight line paths but other paths were evident, although not as variable as that observed with ruda.