…The excitatory postsynaptic potential is a depolarized potential (the inside of a cell is negatively polarized across the cell membrane. A decrease in this polarization is called depolarization, and an increase is called hyperpolarization), and when this reaches a certain threshold potential or higher, it generates an action potential. Inhibitory postsynaptic potentials are often hyperpolarized potentials, which antagonize the excitatory postsynaptic potential and suppress its excitability. … *Some of the terminology that mentions "hyperpolarization" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…興奮性シナプス後電位は脱分極性電位(細胞は細胞膜を境に内側はマイナスに分極している。この分極の減少を脱分極,増加を過分極という)で,これがある閾値(いきち)電位以上に達すると活動電位を発生させる。抑制性シナプス後電位は,多くは過分極性電位で,興奮性シナプス後電位に拮抗して,その興奮性を抑える働きをする。… ※「過分極」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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