...When alpha waves are emitted, opening the eyes, doing mental arithmetic, or stimulating with light or sound causes the alpha waves to disappear and become low-amplitude fast waves. This is called alpha blocking (Figure 3). (3) Brain waves change depending on the level of consciousness, so the waveform changes as the sleep progresses from the onset of sleep to the deepening of sleep. ... *Some of the terminology that refers to "alpha blocking" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…α波が出ている状態を基準として,開眼したり,暗算をさせたり,光や音で刺激すると,α波が消えて低振幅の速波となる。これをαブロッキングという(図3)。(3)脳波は意識水準によって変化するので,入眠からだんだん眠りが深くなるにつれて波形が変化する。… ※「αブロッキング」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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