Approaches and considerations of studying neuronal ensembles: a brief review.

Approaches and considerations of studying neuronal ensembles: a brief review.
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DOI:
10.3389/fncel.2023.1310724
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发表时间:
2023
影响因子:
5.3
通讯作者:
--
中科院分区:
医学2区
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--
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首先由赫布提出理论,神经元集合为理解哺乳动物大脑如何运作提供了一个框架,特别是关于学习和记忆。神经元系综是离散的、稀疏分布的神经元群,它们响应于特定的刺激而被激活,并被认为提供了对世界的内部表征。除了对区域范围或投射范围激活的研究之外,对集合的研究还提供了更高的特异性和分辨率,以识别和定位特定的记忆或关联。对学习、记忆和动机行为的神经生物学感兴趣的神经科学家在临床前模型中使用了基于电生理学、钙和蛋白质的神经元活动代理,以更好地理解学习和动机行为的神经生物学。虽然这三种方法可以用来追求相同的总体目标,研究神经元合奏,技术差异导致输出和解释数据的不一致。这篇简短的综述着重介绍了神经元集合的电生理学、钙离子和蛋白质研究中使用的一些方法,并讨论了它们的优缺点。
First theorized by Hebb, neuronal ensembles have provided a framework for understanding how the mammalian brain operates, especially regarding learning and memory. Neuronal ensembles are discrete, sparsely distributed groups of neurons that become activated in response to a specific stimulus and are thought to provide an internal representation of the world. Beyond the study of region-wide or projection-wide activation, the study of ensembles offers increased specificity and resolution to identify and target specific memories or associations. Neuroscientists interested in the neurobiology of learning, memory, and motivated behavior have used electrophysiological-, calcium-, and protein-based proxies of neuronal activity in preclinical models to better understand the neurobiology of learned and motivated behaviors. Although these three approaches may be used to pursue the same general goal of studying neuronal ensembles, technical differences lead to inconsistencies in the output and interpretation of data. This mini-review highlights some of the methodologies used in electrophysiological-, calcium-, and protein-based studies of neuronal ensembles and discusses their strengths and weaknesses.
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