The Engram's Dark Horse: How Interneurons Regulate State-Dependent Memory Processing and Plasticity.
The Engram's Dark Horse: How Interneurons Regulate State-Dependent Memory Processing and Plasticity.
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DOI:
10.3389/fncir.2021.750541
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发表时间:
2021
影响因子:
3.5
通讯作者:
Aton SJ
中科院分区:
文献类型:
--
作者:
Raven F;Aton SJ
Brain states such as arousal and sleep play critical roles in memory encoding, storage, and recall. Recent studies have highlighted the role of engram neurons–populations of neurons activated during learning–in subsequent memory consolidation and recall. These engram populations are generally assumed to be glutamatergic, and the vast majority of data regarding the function of engram neurons have focused on glutamatergic pyramidal or granule cell populations in either the hippocampus, amygdala, or neocortex. Recent data suggest that sleep and wake states differentially regulate the activity and temporal dynamics of engram neurons. Two potential mechanisms for this regulation are either via direct regulation of glutamatergic engram neuron excitability and firing, or via state-dependent effects on interneuron populations–which in turn modulate the activity of glutamatergic engram neurons. Here, we will discuss recent findings related to the roles of interneurons in state-regulated memory processes and synaptic plasticity, and the potential therapeutic implications of understanding these mechanisms.
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Aton SJ