While there is substantial evidence that the dorsal and ventral hippocampus play different roles during emotional learning, it is unknown how these roles are implemented. Here, we simultaneously recorded in these structures during fear conditioning, and demonstrated a predominance of responses related to fear expression in dorsal hippocampus, while ventral hippocampal responses were more closely linked with the acquisition of conditioned fear. Furthermore, cell assemblies containing both dorsal and ventral neurons emerged during fear conditioning, therefore suggesting a potential substrate to integrate these complementary signals for learning and behavior.

中文翻译：

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腹侧和背侧海马恐惧学习和恐惧表达的差异编码

虽然有大量证据表明背侧海马和腹侧海马在情绪学习过程中发挥着不同的作用，但尚不清楚这些作用是如何实现的。在这里，我们在恐惧调节过程中同时记录了这些结构，并证明了背侧海马中与恐惧表达相关的反应占主导地位，而腹侧海马反应与条件性恐惧的获得更密切相关。此外，在恐惧调节过程中出现了包含背侧和腹侧神经元的细胞集合体，因此表明了整合这些互补信号以进行学习和行为的潜在基质。