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

耶鲁公开课 - 心理学导论课程节选

Neurotransmitters are molecules you've heard of like acetylcholine, like dopamine, like serotonin.

一些神经递质分子 你们可能听说过,像乙酰胆碱,多巴胺,血清素

耶鲁公开课 - 生物医学工程探索课程节选