大鼠 Morris 水迷宫空间定位与再学习测定
Browse experimental protocolsA rat water-maze procedure using an automated Atlantis platform and distal cues, with a new platform location each day. Preserve the separate platform-found and platform-not-found paths, and record escape latency and swim trajectories across the successive trials.
Scope and method
Sample:活体大鼠;原方案在 Wistar 大鼠中实施。
- Wistar ICV-STZ rat
- Age
- 3–4月龄
- Sex
- Male
- Tissue
- Wistar ICV-STZ 大鼠;原研究为雄性动物。
- TgF344-AD
- Age
- 4.29–6.52月龄
- Sex
- Mixed
- Tissue
- TgF344-AD 大鼠;原研究含雌雄动物及野生型对照。
- McGill-R-Thy1-APP
- Age
- 9–11月龄及16–19月龄
- Sex
- Mixed
- Tissue
- McGill-R-Thy1-APP 纯合子大鼠;原研究含雌雄动物及 WT Wistar 对照。
- Sprague-Dawley ICV-STZ rat
- Age
- 成年
- Sex
- Female
- Tissue
- Sprague–Dawley ICV-STZ 大鼠;原研究为雌性成年动物。
- SD 大鼠 MCAO 线栓模型
- Age
- 成年(来源未报告具体周龄)
- Tissue
- 脑/海马(空间学习与记忆)
- transient middle cerebral artery occlusion Wistar rat
- Age
- 成年(来源未报告具体周龄)
- Tissue
- 脑/海马(空间学习与记忆)
- GALT 缺失经典半乳糖血症模型(SD 大鼠)
- Age
- 成年 4-5 月龄
- Sex
- Male
- Tissue
- brain (behavior)
Reagents and materials
Procedure
检查摄像机设置
检查摄像机设置。
将 Atlantis 自动升降平台置于水池,确认升降运动正常,避免平台上下移动时产生水波
将 Atlantis 自动升降平台置于水池,确认升降运动正常,避免平台上下移动时产生水波。
将平台放置在与前一天不同的位置
将平台放置在与前一天不同的位置。
实验第一天不执行与前一天位置比较的要求
实验第一天不执行与前一天位置比较的要求。
启动 Bonsai 工作流,确认以 30 fps 记录视频
启动 Bonsai 工作流,确认以 30 fps 记录视频。
降下平台,使动物暂时无法使用平台
降下平台,使动物暂时无法使用平台。
将动物放在所选起点,面向水池中心
将动物放在所选起点,面向水池中心。
轻放动物入水,避免抛掷和溅水
轻放动物入水,避免抛掷和溅水。
释放动物且操作者离开实验区域时,启动计时器或计算机跟踪程序
释放动物且操作者离开实验区域时,启动计时器或计算机跟踪程序。
经过 1 分钟 后,按下按钮升起平台
经过 1 分钟 后,按下按钮升起平台。
动物到达并接触平台时停止计时;本次试验时限为 2 分钟
Choose the matching condition: Platform — Rats will find the platform. They will do this in two minutes or less; Not platform — If the rat does not find the platform within 2 minutes. 动物到达并接触平台时停止计时;本次试验时限为 2 分钟。
返回取出动物,放入笼内擦干
Condition: Platform — Rats will find the platform. They will do this in two minutes or less 返回取出动物,放入笼内擦干。
间隔 30 分钟 后开始第 2 次试验
Condition: Platform — Rats will find the platform. They will do this in two minutes or less 间隔 30 分钟 后开始第 2 次试验。
升起平台,使动物能够登台,但平台仍不可直接看见
Condition: Platform — Rats will find the platform. They will do this in two minutes or less 升起平台,使动物能够登台,但平台仍不可直接看见。
将动物放在所选起点,面向水池中心;每次试验随机选择不同的起点
Condition: Platform — Rats will find the platform. They will do this in two minutes or less 将动物放在所选起点,面向水池中心;每次试验随机选择不同的起点。
轻放动物入水,避免抛掷和溅水
Condition: Platform — Rats will find the platform. They will do this in two minutes or less 轻放动物入水,避免抛掷和溅水。
释放动物且操作者离开实验区域时,启动计时器或计算机跟踪程序
Condition: Platform — Rats will find the platform. They will do this in two minutes or less 释放动物且操作者离开实验区域时,启动计时器或计算机跟踪程序。
动物到达并接触平台,或经过 1 分钟 时停止计时
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Choose the matching condition: Platform — Rats will find the platform. They will do this in 1 minute or less; Not platform — If the rat does not find the platform within 1 minute 动物到达并接触平台,或经过 1 分钟 时停止计时。
返回取出动物,放入笼内擦干
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Condition: Platform — Rats will find the platform. They will do this in 1 minute or less 返回取出动物,放入笼内擦干。
间隔 5 分钟 后进行下一次试验
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Condition: Platform — Rats will find the platform. They will do this in 1 minute or less 间隔 5 分钟 后进行下一次试验。
将大鼠放在平台上
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Condition: Not platform — If the rat does not find the platform within 1 minute 将大鼠放在平台上。
离开实验区域
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Condition: Not platform — If the rat does not find the platform within 1 minute 离开实验区域。
等待 10 秒
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Condition: Not platform — If the rat does not find the platform within 1 minute 等待 10 秒。
返回取出动物,放入笼内擦干并等待
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Condition: Not platform — If the rat does not find the platform within 1 minute 返回取出动物,放入笼内擦干并等待。
间隔 5 分钟 后进行下一次试验
Condition: Platform — Rats will find the platform. They will do this in two minutes or less Condition: Not platform — If the rat does not find the platform within 1 minute 间隔 5 分钟 后进行下一次试验。
将大鼠放在平台上
Condition: Not platform — If the rat does not find the platform within 2 minutes. 将大鼠放在平台上。
离开实验区域
Condition: Not platform — If the rat does not find the platform within 2 minutes. 离开实验区域。
等待 10 秒
Condition: Not platform — If the rat does not find the platform within 2 minutes. 等待 10 秒。
返回取出动物,放入笼内擦干并等待
Condition: Not platform — If the rat does not find the platform within 2 minutes. 返回取出动物,放入笼内擦干并等待。
间隔 30 分钟 后开始第 2 次试验
Condition: Not platform — If the rat does not find the platform within 2 minutes. 间隔 30 分钟 后开始第 2 次试验。
升起平台,使动物能够登台,但平台仍不可直接看见
Condition: Not platform — If the rat does not find the platform within 2 minutes. 升起平台,使动物能够登台,但平台仍不可直接看见。
将动物放在所选起点,面向水池中心;每次试验使用不同的起点
Condition: Not platform — If the rat does not find the platform within 2 minutes. 将动物放在所选起点,面向水池中心;每次试验使用不同的起点。
轻放动物入水,避免抛掷和溅水
Condition: Not platform — If the rat does not find the platform within 2 minutes. 轻放动物入水,避免抛掷和溅水。
释放动物且操作者离开实验区域时,启动计时器或计算机跟踪程序
Condition: Not platform — If the rat does not find the platform within 2 minutes. 释放动物且操作者离开实验区域时,启动计时器或计算机跟踪程序。
动物到达并接触平台时停止计时;本次试验时限为 1 分钟
Condition: Not platform — If the rat does not find the platform within 2 minutes. 动物到达并接触平台时停止计时;本次试验时限为 1 分钟。
Quality control and readouts
开始前布置远端视觉线索,确认摄像机焦点和光照。水池直径 180 cm、深 60 cm,水面距池沿 10 cm;平台位于水面下 1.5 cm。准备时将池水加热至 22°C,实验过程中保持 19–22°C,加入无毒着色剂使水体变暗。保温箱配备毛巾和加热灯,加热灯不覆盖整个箱体,使动物可以离开暖区。保持各次试验的等待时间和操作时间一致,减少水面反光。
记录每次定位试验的到台潜伏期和游泳轨迹,比较相继试验中的空间定位表现。到达平台与达到时限未到台的情况按对应条件路径分别处理。
References
- Maroto AS, Ugarte Perez E, Cerdán Cerdá A, De Santis S. Morris Water Maze. protocols.io, published 2026-03-26, v1. DOI:10.17504/protocols.io.e6nvwn832vmk/v1.
- Early Neuroprotective Effects of Erucic Acid and Gentisic Acid on Hippocampal Glutamate Concentrations and Alzheimer-like Molecular Alterations in an Intracerebroventricular Streptozotocin Rat Model. PMID:42797438; DOI:10.3390/ph19091392. Model/assay applicability; not exact replication of the separate protocols.io procedure.
- Multimodal Imaging in Rat Model Recapitulates Alzheimer's Disease Biomarkers Abnormalities. PMID:29097597; DOI:10.1523/JNEUROSCI.1346-17.2017. Model/assay applicability; not exact replication of the separate protocols.io procedure.
- Anxiety-like behavior as an early endophenotype in the TgF344-AD rat model of Alzheimer’s disease.. PMID:29107184; DOI:10.1016/j.neurobiolaging.2017.09.024. Model/assay applicability; not exact replication of the separate protocols.io procedure.
- Schisandrin ameliorates cognitive deficits, endoplasmic reticulum stress and neuroinflammation in streptozotocin (STZ)-induced Alzheimer’s disease rats. PMID:32336744; DOI:10.1538/expanim.19-0146. Model/assay applicability; not exact replication of the separate protocols.io procedure.