论文标题
海马位置细胞编码的环境之间的相关性
Correlation Across Environments Encoded by Hippocampal Place Cells
论文作者
论文摘要
海马通常归因于哺乳动物大脑中的情节记忆形成和储存。特别是Alme等。表明海马面积CA3在许多环境中形成了统计独立的表示，即使环境共享高度相似的特征。空间图之间缺乏重叠，表明CA3电路的大容量。在本文中，我们支持CA3网络大容量的论点。为此，我们复制了Alme等人的关键发现。并通过使用噪声和传导表示相似性分析（RSA）的神经活动编码来扩展结果。我们发现，发射速率之间的相关性部分抵抗噪声，并且即使在不同环境中，跨细胞的空间表示也显示出相似的模式。最后，我们讨论了结果的一些理论和实际含义。
The hippocampus is often attributed to episodic memory formation and storage in the mammalian brain; in particular, Alme et al. showed that hippocampal area CA3 forms statistically independent representations across a large number of environments, even if the environments share highly similar features. This lack of overlap between spatial maps indicates the large capacity of the CA3 circuitry. In this paper, we support the argument for the large capacity of the CA3 network. To do so, we replicate the key findings of Alme et al. and extend the results by perturbing the neural activity encodings with noise and conducting representation similarity analysis (RSA). We find that the correlations between firing rates are partially resistant to noise, and that the spatial representations across cells show similar patterns, even across different environments. Finally, we discuss some theoretical and practical implications of our results.
