For example, increased dopamine in the mesolimbic system, a reward pathway composed of the ventral tegmentum and the nucleus accumbens causes pleasure, improved attention and mental processing, and working memory.

例如，人体的一个由腹侧被盖区和伏隔核组成的奖赏通路中脑边缘系统里多巴胺的增多，可欣快感、注意力高、思维变敏捷、记忆力增强等效应。

Nicotine directly increases dopamine levels in the nucleus accumbens, but it also increases glutamate levels which gets the ventral tegmentum neurons to release more dopamine onto the nucleus accumbens.

尼古丁可直接高伏隔核的多巴胺水平，但同高谷氨酸盐水平，使腹侧被盖区经元释放更多的多巴胺至伏隔核。

For example, increased concentrations of dopamine in the brain's reward pathway, which includes the nucleus accumbens, ventral tegmentum, and prefrontal cortex, produce intense feelings of euphoria, pleasure, and the emotional " high" associated with cocaine.

例如，包括伏隔核、腹侧被盖和前额叶皮层在内的大脑奖赏途径中多巴胺浓度的增加，在可卡因的帮助下，能够产生强烈的兴奋、快感，及很“嗨”的感觉。

Nicotine also decreasing the activity of inhibitory GABA neurons in the ventral tegmentum, so by inhibiting the inhibitory neurons there's a double negative, which means that this is one more way to create an increase in dopamine levels.

尼古丁还能减少腹侧被盖区抑制性GABA经元的活动，抑制抑制性经元会到负负得正的作用，从另一方面高了多巴胺水平。