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水迷宫在啮齿动物基础研究和监管研究中评估空间和自我中心学习与记忆的价值。

Value of water mazes for assessing spatial and egocentric learning and memory in rodent basic research and regulatory studies.

作者信息

Vorhees Charles V, Williams Michael T

机构信息

Division of Child Neurology, Dept. of Pediatrics, Cincinnati Children's Research Foundation and University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States.

Division of Child Neurology, Dept. of Pediatrics, Cincinnati Children's Research Foundation and University of Cincinnati College of Medicine, Cincinnati, OH 45229, United States.

出版信息

Neurotoxicol Teratol. 2014 Sep-Oct;45:75-90. doi: 10.1016/j.ntt.2014.07.003. Epub 2014 Aug 10.

Abstract

Maneuvering safely through the environment is central to survival of all animals. The ability to do this depends on learning and remembering locations. This capacity is encoded in the brain by two systems: one using cues outside the organism (distal cues), allocentric navigation, and one using self-movement, internal cues and sometimes proximal cues, egocentric navigation. Allocentric navigation involves the hippocampus, entorhinal cortex, and surrounding structures (e.g., subiculum); in humans this system encodes declarative memory (allocentric, semantic, and episodic, i.e., memory for people, places, things, and events). This form of memory is assessed in laboratory animals by many methods, but predominantly the Morris water maze (MWM). Egocentric navigation involves the dorsal striatum and connected structures; in humans this system encodes routes and integrated paths and when over-learned becomes implicit or procedural memory. Several allocentric methods for rodents are reviewed and compared with the MWM with particular focus on the Cincinnati water maze (CWM). MWM advantages include minimal training, no food deprivation, ease of testing, reliable learning, insensitivity to differences in body weight and appetite, absence of non-performers, control methods for performance effects, repeated testing capability and other factors that make this test well-suited for regulatory studies. MWM limitations are also reviewed. Evidence-based MWM design and testing methods are presented. On balance, the MWM is arguably the preferred test for assessing learning and memory in basic research and regulatory studies and the CWM is recommended if two tests can be accommodated so that both allocentric (MWM) and egocentric (CWM) learning and memory can be effectively and efficiently assessed.

摘要

在环境中安全移动对所有动物的生存至关重要。做到这一点的能力取决于学习和记住位置。这种能力在大脑中由两个系统编码:一个使用生物体外部的线索(远端线索),即非自我中心导航;另一个使用自我运动、内部线索,有时还使用近端线索,即自我中心导航。非自我中心导航涉及海马体、内嗅皮质和周围结构(如海马下脚);在人类中,这个系统编码陈述性记忆(非自我中心、语义和情景记忆,即对人、地点、事物和事件的记忆)。在实验动物中,这种记忆形式通过多种方法进行评估,但主要是通过莫里斯水迷宫(MWM)。自我中心导航涉及背侧纹状体及其连接结构;在人类中,这个系统编码路线和整合路径,当过度学习时会变成内隐或程序性记忆。本文综述了几种用于啮齿动物的非自我中心方法,并将其与MWM进行比较,特别关注辛辛那提水迷宫(CWM)。MWM的优点包括训练最少、无需禁食、测试容易、学习可靠、对体重和食欲差异不敏感、没有不执行者、有控制性能影响的方法、具备重复测试能力以及其他使该测试非常适合监管研究的因素。同时也综述了MWM的局限性。还介绍了基于证据的MWM设计和测试方法。总体而言,MWM可以说是基础研究和监管研究中评估学习和记忆的首选测试,如果可以进行两项测试,那么推荐使用CWM,以便能够有效且高效地评估非自我中心(MWM)和自我中心(CWM)的学习和记忆。

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