Curriculum in Neurobiology, University of North Carolina at Chapel Hill.
Department of Psychology, University of North Carolina at Chapel Hill.
Behav Neurosci. 2021 Feb;135(1):4-7. doi: 10.1037/bne0000437.
Male and female Long-Evans rats were tested in the Morris water maze at 6 months of age. A place training procedure, in which rats learned the position of a camouflaged platform, was followed by cue training, in which rats escaped to a visible platform. No sex difference was found in place learning ability. Search accuracy on probe trials, when the platform was unavailable, was also equivalent for the male and female groups. These results contrast with previous studies of rodents at younger ages, which have reported a male advantage in spatial learning. It is suggested that the age at which rats are assessed may be an important factor, possibly reflecting a different course in the relatively protracted maturation of the hippocampus in male and female rats. The results of this investigation are also discussed with reference to studies of sex differences for spatial abilities in humans. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
雄性和雌性长耳大野鼠在 6 个月大时于 Morris 水迷宫中接受测试。首先进行位置训练程序，在此过程中，大鼠学习伪装平台的位置，然后进行提示训练，大鼠从可见平台逃脱。在位置学习能力方面，雄性和雌性大鼠之间没有发现性别差异。在无法使用平台的探测试验中，搜索准确性也相当。这些结果与以前在较年轻时对啮齿动物的研究形成对比，这些研究报告了雄性在空间学习方面具有优势。有人认为，评估大鼠的年龄可能是一个重要因素，这可能反映了雄性和雌性大鼠的海马体相对较长的成熟过程不同。本研究的结果还参照了人类空间能力性别差异的研究进行了讨论。
