耶鲁大学开放课程《心理学导论》 第一讲 这是大脑
地道英语原文欣赏（11）
One of the discoveries of psychology is that the basic unit of the brain appears to be the neuron.The neuron is a specific sort of cell and the neuron has three major parts as you could see illustrated here.Nervous actually look quite different from one another（but this is a typical one）.There are the dendrites ,these little tentacles here.And the dendrites get signals from other neurons.These signals can be either excitatory which is that they raise the likelihood the neuron will fire,or inhibitory in that they lower the likelihood that the neuron will fire.
心理学的发现之一就是神经元是大脑的基本单元。神经元是一种特别的细胞，正如你们所看见的，神经元有三个主要部分。尽管神经元的外形各不相同（这是个典型的神经元），这里的细小触毛叫 树突，它负责接收来自其他神经元的刺激信号。这些信号有可能是兴奋的，会增加神经元产生神经冲动的可能性。也可能是抑制性的，会降低神经元产生神经冲动的可能性。#原版英语阅读# #英文阅读分享# #英语外刊精读# #英语经典阅读#
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