考虑到大脑每秒产生上百万个尖峰信号，这看起来是微乎其微的。

This may not seem like much, given that the brain produces millions of spikes every second.

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然而，研究者们估计说最终这一个额外尖峰信号会影响上百万个大脑神经元。

However, the researchers estimated that eventually that one extra spike affected millions of neurons in the brain.

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干扰是一个单独的额外尖峰信号或神经冲动，刺激小鼠的一个单独的神经元。

The perturbation was a single extra 'spike, ' or nerve impulse, introduced to a single neuron in the brain of a rat.

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