The other part is a battery pack. The battery produces the electric signals.

另一部分是个电池组，电池能产生电信号。

If they chose the wrong image, an electric signaling device would make a sound, and the sheep would receive no treat.

如果他们选择的是错误照片，一个电子装置就会发出声响，而绵羊也得不到任何食物奖励。

It actually dates back to the time of the telegraph, an old method of sending messages using radio or electric signals.

它实际上可以追溯到电报时代，电报是一种使用无线电或电子信号发送信息的古老手段。

Usually that size difference comes from a fatty substance called myelin that speeds up the conduction of electric signals.

通常这种大小差异来自一种叫做髓磷脂的脂肪物质，它可以加速电信号的传导。

When sound enters your ear, those hair cells, they send electric signals to your brain, and your brain then interprets that as sound.

当声音进入你的耳朵时，这些毛细胞就会把电信号传送到你的大脑，然后大脑会将这些电信号转译成声音。

And as levels of cortisol rise, electric signals in your hippocampus, the part of the brain associated with learning, memories, and stress control, deteriorate.

随着皮质醇水平的上升，你海马体里面的电信号，即大脑中和学习、记忆、压力控制相关的部分，开始恶化。

Later on, electric signals in your brain can travel back down those pathways to help you recall the experience you were having when they formed.

稍后，大脑中的电信号能沿着这些路径传播回去，帮助回忆起它们形成时的经历。

To sleep, the chance to dream, but researchers at the Goethe University in Frankfurt say they can make those dreams more vivid by the application of low frequency electric signals.

睡觉时就有可能做梦，但德国法兰克福大学的研究者称通过导入弱频率的电信号就能让梦境更生动。

The team found that if an electric eel can’t see or smell its prey at all, it will only strike towards prey that responds to that electric signal.

研究小组发现，如果电鳗根本看不到或闻不到猎物，它只会攻击对电信号有反应的猎物。