Embryonic Olfactory Learning in Frogs
Embryonic Olfactory Learning in Frogs
复制标题
青蛙的胚胎嗅觉学习
DOI：
--
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Bruce Waldman
中科院分区：
文献类型：
--
作者：
P. Hepper;Bruce Waldman
我们研究了两种无尾两栖动物，蛙temporaria和蛙sylvatica的胚胎嗅觉经验孵化后的行为的影响。注入卵中的气味（橙子和柠檬醛）被胚胎“学习”，随后孵化后的蝌蚪更喜欢这种气味。所观察到的偏好是特定的气味经历孵化前，和蝌蚪之间的气味经历的胚胎和一种新的气味。对于那些表现出蝌蚪偏好的个体，变态后仍保持着获得的偏好。蝌蚪的偏好也受到发育中胚胎周围水中气味的“自然”影响。实验诱导的嗅觉偏好似乎没有影响展览的同胞识别能力。本研究首次证明了两栖动物的“胚胎”学习，并讨论了两栖动物早期嗅觉学习的功能和重要性。
We examined the effect of embryonic olfactory experiences on behaviour after hatching in two species of anuran amphibians, Rana temporaria and Rana sylvatica. Odorants (orange and citral) injected into the egg were “learned” by the embryo and subsequently preferred by tadpoles after hatching. The observed preferences were specific to the odours experienced prior to hatching, and tadpoles discriminated between the odour experienced as embryos and a novel odour. The acquired preference was maintained after metamorphosis for those individuals that exhibited a preference as tadpoles. Preferences of tadpoles were also influenced “naturally” by odours present in the water surrounding the developing embryos. The experimentally induced olfactory preferences did not appear to influence the exhibition of sibling recognition abilities. The study represents the first demonstration of “embryonic” learning in amphibians, and the functions and importance of early olfactory learning for amphibians are discussed.