"Dopamine is considered a neurotransmitter that is crucial for our ability to perceive rewards and to be motivated in our behavior."

VOA: special.2009.09.16

And one problem is that "For depression" is that there's too little of a neurotransmitter known as serotonin.

抑郁症的问题就在于,缺乏一种叫做血清素的神经递质

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Because if it was a neurotransmitter activated ion channel, what would happen when the neurotransmitter bound here?

因为假如这是一个,神经递质激活的离子通道,当神经递质结合于此的时候,会发生些什么呢

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In particular, they increase the amount of norepinephrine, a neurotransmitter that's responsible for just general arousal.

具体来说,安非他命会引起,去甲肾上腺素释放量的增加,去甲肾上腺素,是种负责一般性唤醒的神经递质

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And one factor in Parkinson's is too little of a neurotransmitter known as dopamine.

引起帕金森症的一个病因,便是严重缺乏一种叫做多巴胺的神经递质

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And what an agonist does is increases the effect of neurotransmitters, either by making more neurotransmitters or stopping the cleanup of neurotransmitters, or in some cases by faking a neurotransmitter, by mimicking its effects.

兴奋剂会增加神经递质的作用效果,有可能是通过释放更多的神经递质而实现,也可能是通过阻止神经递质的排出而实现,也有时候是通过伪造神经递质,通过模仿神经递质的效果来实现的

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This process, which is shown schematically here, as a vesicle fusing with the cell membrane and then dropping its neurotransmitter only happens when an action potential reaches the end of the axon.

这一过程 扼要地展示在这里,小泡同细胞膜融合,释放其神经递质,这只发生在动作电位抵达轴突末梢时

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