Herzog Michael, Hopf Sigrid
Max-Planck-Institut für Psychiatrie, München, FRG.
Am J Primatol. 1984;7(2):99-106. doi: 10.1002/ajp.1350070204.
Six infant squirrel monkeys were reared in social isolation. They responded differentially to playbacks of two species-specific alarm calls. The reaction to the alarm peep, the warning call to bird predators, was a prompt flight to the mother surrogate and essentially resembled the respective behavior of mother-reared infants. The responses to yapping, the alarm call to terrestrial predators, were less clear-cut and habituated soon. However, when yapping was played back in connection with the presentation of a reference object, both subjects tested in this way clearly avoided the object and preferred contact with the mother surrogate while they thoroughly explored an object presented with a control tone. From this it can be concluded that the perception of both alarm calls is innate. In addition, the method of behavior-contingent playback of vocalizations simulates the learning process by which the visual perception of terrestrial predators of the habitat is acquired.
六只幼年松鼠猴在社会隔离环境中饲养。它们对两种特定物种的警报叫声回放有不同反应。对警报啁啾声（对鸟类捕食者的警告叫声）的反应是迅速逃向替代母亲，这与由母亲抚养的幼猴的相应行为基本相似。对吠叫声（对陆地捕食者的警报叫声）的反应则不那么明确，且很快就习惯了。然而，当将吠叫声与一个参考物体的呈现一起回放时，以这种方式测试的两只猴子都明显避开了该物体，并且在彻底探索与控制音调一起呈现的物体时，更喜欢与替代母亲接触。由此可以得出结论，对这两种警报叫声的感知是天生的。此外，根据行为情况回放发声的方法模拟了获取栖息地陆地捕食者视觉感知的学习过程。
