…When the magnitude of this postsynaptic potential is large enough, an impulse is generated in the afferent fiber. The receptor potential in the primary sensory neuron is also called the generator potential because it directly causes the generation of an impulse. When we look at the time course of the discharge frequency of the primary afferent fiber, we see that it gradually decreases even if a constant stimulus of a certain magnitude is continuously applied. … *Some of the terminology that refers to "activation potential" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…このシナプス後電位の大きさが十分大きいとき,求心繊維にインパルスが生ずる。一次感覚ニューロンでみた受容器電位は,直接インパルスを発生させる原因になるところから起動電位generator potentialともいわれる。一次求心繊維の放電頻度の時間経過をみると,一定の大きさの刺激を持続的に与えているにもかかわらず,しだいに低下してくる。… ※「起動電位」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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