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首页> 外文期刊>Neuron >Differential but complementary mnemonic functions of the hippocampus and subiculum.
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Differential but complementary mnemonic functions of the hippocampus and subiculum.

机译：海马和下丘脑的微分但互补的记忆功能。

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摘要

In this study we describe how the hippocampus and subiculum act in concert to encode information in a spatial delayed-nonmatch-to-sample (DNMS) task. This encoding was functionally partitioned between neurons within subiculum and hippocampus to uniquely identify trial-specific information accounting for both spatial and temporal constraints on performance within and between trials. Encoding by subicular neurons in the task was normally accurate and specific, but only if delays were shorter than 15 s, whereas trial-specific information encoded by hippocampal neurons was subject to strong biases from prior trial sequences and was accessible only when delays exceeded 15 s. The two structures operated in a complementary manner to encode information correctly on 75% of all trials using the above strategies. The remaining 25% of trials were at risk due to inherent idiosyncrasies by which hippocampal and subicular neurons encoded information and became errors when the random sequence of trials conflicted withthese constraints.
机译：在这项研究中，我们描述了海马和下丘脑如何协同作用以在空间延迟样本不匹配（DNMS）任务中编码信息。该编码在功能上在下丘脑和海马内的神经元之间分配，以唯一地确定特定于试验的信息，这些信息说明了试验之间以及试验之间的时空限制。通常，只有在延迟时间短于15 s的情况下，亚皮层神经元的编码才是准确且特定的，而海马神经元编码的特定于试验的信息会受到先前试验序列的强烈偏见，只有延迟超过15 s时才能访问。使用上述策略，这两种结构以互补的方式操作，可以正确编码所有试验的75％的信息。其余25％的试验由于固有的特质性而处于危险之中，海马和亚层神经元通过固有的特质性编码信息，并在试验的随机顺序与这些约束冲突时变成错误。

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