Chiszar D, Hobika G, Smith H M
Department of Psychology, University of Colorado, Boulder 80309.
Brain Behav Evol. 1993;41(3-5):229-33. doi: 10.1159/000113843.
In Experiment I, homogenized rodent tissue was applied to the lips of prairie rattlesnakes (Crotalus viridis). This treatment produced elevated rates of tongue flicking compared to controls that received water, but the elevations seen following stimulation with homogenate were not as large as those seen after snakes struck prey. In Experiment II, water, rodent blood, and integumentary cues were applied to the lips of rattlesnakes, and only blood resulted in elevated rates of tongue flicking. We conclude that blood is a critical component of the homogenate. It is hypothesized that detection of blood during predatory strikes may be a causal element in the triggering of strike-induced chemosensory searching, a typical component of rattlesnake predatory behavior.
在实验一中，将匀浆化的啮齿动物组织涂抹在草原响尾蛇（西部菱斑响尾蛇）的唇部。与接受水的对照组相比，这种处理使吐舌频率升高，但用匀浆刺激后观察到的频率升高幅度不如蛇攻击猎物后观察到的幅度大。在实验二中，将水、啮齿动物血液和体表线索涂抹在响尾蛇的唇部，只有血液导致吐舌频率升高。我们得出结论，血液是匀浆的关键成分。据推测，在捕食攻击过程中检测到血液可能是触发攻击诱导的化学感觉搜索的一个因果因素，这是响尾蛇捕食行为的一个典型组成部分。
