Vibrissal sense is not the main sensory modality in rat exploratory behavior in the elevated plus-maze
Vibrissal sense is not the main sensory modality in rat exploratory behavior in the elevated plus-maze
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DOI：
10.1016/s0166-4328(01)00180-2
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发表时间：
2001-08-01
影响因子：
2.7
通讯作者：
Morato, S
中科院分区：
文献类型：
--
作者：
Cardenas, F;Lamprea, MR;Morato, S
对四组雄性 Wistar 大鼠进行急性双侧毛囊不同长度切除术。每组又分为两个亚组，在高环境照度（150 Lux）和低环境照度（2 Lux）下进行测试。所有受试者都被允许自由探索高架十字迷宫 5 分钟。结果表明，低照度下测试的老鼠比高照度下测试的老鼠更频繁地探索张开的手臂，时间也更长。当在低照度下进行测试时，接受全部触毛去除的组中的大鼠比其他组中的大鼠在张开臂中停留的时间更长，但进入的数量没有差异。张开手臂的长度平均增加，而不是对张开手臂的厌恶减少，可能是因为没有光线且触毛被移除，需要更多时间来获取有关环境的信息。在高照度下测试的老鼠中没有看到这种效应，可能是因为视觉可以用来获取相关信息。 (C) 2001 Elsevier Science B.V. 保留所有权利。
Four groups of male Wistar rats were submitted to acute bilateral removal of mystacial vibrissae at different lengths from the follicle. Each group was divided into two subgroups, tested under high (150 Lux) and low environmental illumination (2 Lux). All the subjects were allowed to freely explore an elevated plus-maze for 5 min. Results indicated that rats tested under low illumination tended to explore the open arms more frequently and longer then rats tested under high illumination. When tested under low illumination, rats in the group that suffered whole vibrissa removal stayed longer in the open arms than those in the other groups but did not differ in the number of entries. The average increase in the length of open arm entries, rather than a decrease in aversion to the open arms, may be due to the need of more time to obtain information about the environment since there is no light and the vibrissae were removed. This effect was not seen with rats tested under high illumination, possibly because vision could be used to obtain relevant information. (C) 2001 Elsevier Science B.V. All rights reserved.