Bauer J H
Department of Psychology, Concordia University, Montreal, Quebec, Canada.
Dev Psychobiol. 1993 Nov;26(7):421-31. doi: 10.1002/dev.420260705.
Previous studies have shown that maternal rats are attracted to their own bedding and that of other dams but not to that of virgins. The present studies were designed to test two hypotheses: First, that the addition of a novel botanical odor to the bedding of maternal animals would result in subsequent preferences for such an odor. Second, such a preference should enable dams to discriminate between pups odorized with familiar and unfamiliar odors as measured by differential retrieval of the pups. Both hypotheses were confirmed. In addition, we found that preferences established during a first pregnancy and lactation affected the retrieval of pups during a second lactational period, but could be overturned by new olfactory experience during that second lactational period.
先前的研究表明，母鼠会被自己和其他母鼠的垫料所吸引，但不会被处女鼠的垫料所吸引。本研究旨在验证两个假设：第一，在母鼠的垫料中添加一种新的植物气味会导致随后对这种气味产生偏好。第二，这种偏好应使母鼠能够通过对幼崽的不同找回率来区分用熟悉和不熟悉气味处理过的幼崽。两个假设均得到证实。此外，我们发现，在第一次怀孕和哺乳期建立的偏好会影响第二次哺乳期对幼崽的找回，但在第二次哺乳期的新嗅觉体验可以改变这种偏好。
