| 翻訳と辞書 |
| Nonsynaptic plasticity ： ウィキペディア英語版 |
Nonsynaptic plasticity
Nonsynaptic plasticity is a form of neuroplasticity that involves modification of ion channel function in the axon, dendrites, and cell body that results in specific changes in the integration of excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs). Nonsynaptic plasticity is a modification of the intrinsic excitability of the neuron. It interacts with synaptic plasticity, but it is considered a separate entity from synaptic plasticity. Intrinsic modification of the electrical properties of neurons plays a role in many aspects of plasticity from homeostatic plasticity to learning and memory itself. Nonsynaptic plasticity affects synaptic integration, subthreshold propagation, spike generation, and other fundamental mechanisms of neurons at the cellular level. These individual neuronal alterations can result in changes in higher brain function, especially learning and memory. However, as an emerging field in neuroscience, much of the knowledge about nonsynaptic plasticity is uncertain and still requires further investigation to better define its role in brain function and behavior.
==Nonsynaptic vs. synaptic plasticity==
Neuroplasticity is the ability of a particular part or region of a neuron to change in strength over time. There are two largely recognized categories of plasticity: synaptic and nonsynaptic. Synaptic plasticity deals directly with the strength of the connection between two neurons, including amount of neurotransmitter released from the presynaptic neuron, and the response generated in the postsynaptic neuron. Nonsynaptic plasticity involves modification of neuronal excitability in the axon, dendrites, and soma of an individual neuron, remote from the synapse.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Nonsynaptic plasticity」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|