Passive responses of young guinea pigs during exposure to a novel environment: Influences of social partners and age
Passive responses of young guinea pigs during exposure to a novel environment: Influences of social partners and age
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DOI：
10.1002/dev.20045
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发表时间：
2005-01-01
影响因子：
2.2
通讯作者：
Morris, A
中科院分区：
文献类型：
--
作者：
Hennessy, MB;Morris, A
在新的环境中隔离期间，豚鼠幼崽表现出两个阶段的主动/被动反应，类似于在某些灵长类动物中观察到的“抗议”和“绝望”阶段。本研究探讨了社会和发育对幼年豚鼠被动反应阶段表达的影响。断奶前和青春期期间的豚鼠在新环境中的隔离过程中都表现出被动阶段。对于从出生起就与母亲一起饲养的断奶前幼犬和青春期幼犬，母亲在新环境中的存在可以防止被动阶段的发生。在不熟悉的成年女性面前，被动反应的水平通常处于其他两种测试条件下的中间水平；然而，在断奶和测试之间仅与同伴一起饲养的青春期儿童，不仅在独处时，而且在与母亲或不熟悉的雌性在一起时，都表现出被动的反应阶段。研究结果表明，被动反应可能发生在青春期豚鼠身上，并且发生这种反应的测试条件取决于测试前青春期豚鼠的社会住房条件。此外，结果与第二阶段的反应构成“压力诱发的疾病行为”的假设是一致的。 (c) 2005 年 Wiley 期刊公司。
Guinea pig pups exhibit a two-stage, active/passive response during isolation in a novel environment that resembles the "protest" and "despair" stages observed in some species of primates. The present study examined social and developmental influences on the expression of the passive stage of responsiveness in young guinea pigs. Both preweaning and periadolescent guinea pigs displayed the passive stage during isolation in a novel environment. In preweaning pups and periadolescents that had been housed with the mother since birth, the presence of the mother in the novel environment prevented the passive stage from occurring. Levels of passive responses in the presence of an unfamiliar adult female were generally intermediate to those in the other two test conditions; however, periadolescents housed only with a peer between weaning and testing exhibited the passive stage of responsiveness not only when alone but also when with the mother or an unfamiliar female. The findings indicate that the passive responses can occur in periadolescent guinea pigs and that the test conditions under which they occur depend upon the periadolescents' social housing conditions prior to testing. Further the results are consistent with the hypothesis that responses during the second stage constitute "stress-induced sickness behaviors." (c) 2005 Wiley Periodicals, Inc.