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TEST CAGE - MOUSE - INCLUDES INFUSION AND STIMULATION LID, REQUIRES FLOOR PURCHASED SEPARATELY

Company: Coulbourn Instruments
Catalog#: H10-11M-TC
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Assessing Classical Olfactory Fear Conditioning by Behavioral Freezing in Mice
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Date:
2018-09-20
[Abstract]  Classical fear conditioning typically involves pairing a discrete cue with a foot shock. Quantifying behavioral freezing to the learned cue is a crucial assay for neuroscience studies focused on learning and memory. Many paradigms utilize discrete stimuli such as tones; however, given mice are odor-driven animals and the wide variety of odorants commercially available, using odors as conditioned stimuli presents advantages for studies involving learning. Here, we describe detailed procedures for assembling systems for presenting discrete odor cues during single-day fear conditioning and subsequent analysis of freezing behavior to assess learning. [摘要]  经典的恐惧条件反射通常涉及将离散的线索与脚部震动配对。 量化对学习线索的行为冻结是针对学习和记忆的神经科学研究的关键分析。 许多范例利用诸如音调之类的离散刺激; 然而,鉴于小鼠是气味驱动的动物和商业上可获得的各种气味剂,使用气味作为条件刺激对于涉及学习的研究具有优势。 在这里,我们描述了用于组装系统的详细程序,该系统用于在单日恐惧条件反射期间呈现离散的气味线索并随后分析冷冻行为以评估学习。

【背景】联想恐惧学习是几种焦虑症的根源,涉及将中性刺激与厌恶结果配对。这种配对产生强烈的行为恐惧反应,以冷冻(LeDoux,2003)的形式,对条件刺激,可以量化为恐惧学习和记忆的量度。离散刺激,如音调,通常被用作恐惧条件反射的条件刺激;然而,嗅觉提示在诱导学习冷冻方面也非常有效(Pavesi et al。,2012; Ross and Fletcher,2018)。这种联想恐惧学习方法不同于利用捕食者气味的方法,这种方法产生本能行为而非学习行为,使其成为快速评估嗅觉学习的理想选择。行为冻结,定义为缺乏所有自愿运动(Blanchard和Blanchard,1969; ...

Trace Fear Conditioning: Procedure for Assessing Complex Hippocampal Function in Mice
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Date:
2018-08-20
[Abstract]  The trace fear conditioning protocol is designed to measure hippocampal function in mice. The protocol includes a neutral conditioned stimulus (tone) and an aversive unconditioned stimulus (shock), separated in time by a trace interval. The trace interval between the tone and the shock critically involves the hippocampus and could be used to evaluate hippocampal-dependent learning and memory. In this protocol, we presented mice with five pairings of tone and shock separated by a 20 sec trace interval. Freezing was measured 24 h after conditioning to evaluate contextual memory by placing mice in the conditioned chamber. In addition, 48 h after conditioning, freezing was measured in a dark chamber, which served as a different context. This method enables precise detection of ... [摘要]  痕量恐惧条件反射方案旨在测量小鼠的海马功能。 该方案包括中性条件刺激(音调)和厌恶的无条件刺激(休克),在时间上以跟踪间隔分开。 音调和休克之间的痕迹间隔关键地涉及海马体并且可以用于评估海马依赖性学习和记忆。 在这个协议中,我们给小鼠提供了五对音调和震动,以20秒的跟踪间隔分开。 在调节后24小时测量冷冻以通过将小鼠置于经调节的室中来评估情境记忆。 另外,在调理后48小时,在暗室中测量冷冻,其作为不同的背景。 该方法能够在损害或增强海马功能的药理学和遗传操作之后精确检测海马依赖性学习和记忆。

【背景】 跟踪恐惧条件(TFC)范例不同于标准的恐惧条件范式(Heise et al。,2017; Segev et al。,2013和2015),简单插入条件刺激(CS,例如,音调)和无条件刺激(US,例如,电击足)之间的痕迹间隔,并在固定时重复应用它们的组合间隔。 TFC范式涉及在自然和病理条件下形成时间上不连续的关联,并且被认为是复杂的,海马依赖的范例,与简单的皮质依赖性学习范例(例如味觉学习)相反(Stern et al 。,2013; Ounallah-Saad et al。,2014; Rappaport et al。,2015; Levitan et al。, 2016; Sharma et ...

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