The study focused on different versions of a receptor for the neurotransmitter dopamine, which controls feelings of pleasure.
研究围绕不同的多巴胺受体，多巴胺是一种神经递质，控制人的愉快的感觉。
2
The release of neurotransmitter molecules from one neuron and their attachment to receptor sites on another keep a nerve impulse moving.
神经递质分子从一个神经原释放后，附着到另一个接受点，令神经冲动保持运动的状态。
3
They found the differences in the gene for a molecule called the dopamine D2 receptor (DRD2), a protein present on brain cells that are sensitive to the neurotransmitter dopamine.