Homeostatic plasticity and excitation-inhibition balance: The good, the bad, and the ugly.

Homeostatic plasticity and excitation-inhibition balance: The good, the bad, and the ugly.
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DOI:
10.1016/j.conb.2022.102553
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发表时间:
2022-08
影响因子:
5.7
通讯作者:
--
中科院分区:
医学2区
文献类型:
--
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在这篇综述中,我们讨论了突触兴奋/抑制(E/I)平衡的意义的上下文中的稳态可塑性,其主要目标是建议保持神经元放电率在一个设定点。我们首先提供了一个概述的过程中,通过模式化的输入活动驱动突触E/I调谐和成熟的电路在发展过程中。接下来,我们强调的重要性,在突触水平的E/I平衡(稳态控制的信息接收)作为一种手段,以实现目标(稳态控制的信息传输)在网络水平,并考虑如何受损的稳态可塑性与神经系统疾病导致过度活跃,网络不稳定,并最终不正确的信息处理。最后,我们强调几个病理条件相关的感觉传入阻滞,并描述如何在某些情况下,稳态补偿没有适当的感觉输入可能会导致幻觉的看法。
In this review, we discuss the significance of the synaptic excitation/inhibition (E/I) balance in the context of homeostatic plasticity, whose primary goal is proposed to be to maintain neuronal firing rates at a set point. We first provide an overview of the processes through which patterned input activity drives synaptic E/I tuning and maturation of circuits during development. Next, we emphasize the importance of the E/I balance at the synaptic level (homeostatic control of message reception) as a means to achieve the goal (homeostatic control of information transmission) at the network level, and consider how compromised homeostatic plasticity associated with neurological diseases leads to hyperactivity, network instability, and ultimately improper information processing. Lastly, we highlight several pathological conditions related to sensory deafferentation and describe how in some cases, homeostatic compensation without appropriate sensory inputs can result in phantom perceptions.
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