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首页> 外文期刊>Neurobiology of learning and memory >Hippocampal network oscillations as mediators of behavioural metaplasticity: Insights from emotional learning
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Hippocampal network oscillations as mediators of behavioural metaplasticity: Insights from emotional learning

机译：海马网络振荡作为行为荟萃塑化的调解员：情感学习的见解

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Behavioural metaplasticity is evident in experience–dependent changes of network activity patterns in neuronal circuits that connect the hippocampus, amygdala and medial prefrontal cortex. These limbic regions are key structures of a brain-wide neural network that translates emotionally salient events into persistent and vivid memories. Communication in this network by-and-large depends on behavioural state-dependent rhythmic network activity patterns that are typically generated and/or relayed via the hippocampus. In fact, specific hippocampal network oscillations have been implicated to the acquisition, consolidation and retrieval, as well as the reconsolidation and extinction of emotional memories. The hippocampal circuits that contribute to these network activities, at the same time, are subject to both Hebbian and non-Hebbian forms of plasticity during memory formation. Further, it has become evident that adaptive changes in the hippocampus-dependent network activity patterns provide an important means of adjusting synaptic plasticity. We here summarise our current knowledge on how these processes in the hippocampus in interaction with amygdala and medial prefrontal cortex mediate the formation and persistence of emotional memories.
机译：在连接海马，Amygdala和内侧前额叶皮质的神经元电路中的网络活动模式的经验依赖性变化中是显而易见的。这些肢体区域是一个脑拓神经网络的关键结构，它将情绪突出的事件转化为持久和生动的记忆。该网络中的通信By-and大取决于通过海马通常生成和/或中继的行为状态相关的节奏网络活动模式。事实上，特定的海马网络振荡已经涉及收购，整合和检索，以及再共源和情绪记忆的灭绝。同时对这些网络活动有助于这些网络活动的海马电路在记忆形成期间涉及Hebbian和非Hebbian的可塑性。此外，已经明显显然，海马依赖网络活性模式的自适应变化提供了调节突触可塑性的重要手段。我们在这里总结了目前关于海马在与Amygdala和内侧前额定皮层相互作用的这些过程如何调解情绪记忆的形成和持久性的知识。

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