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:
文献类型:
--
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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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