To review the neurochemical substrates of opiate reinforcement .
目的综述阿片强化的神经化学机制。
In the case of the hand and stove , the brain is bypassed altogether ; all the important neurochemical action takes place in the spine .
在手臂和火炉的例子中，大脑被置之不理；最重要的神经活动发生在脊柱中。
Cupid 's ammo is the first of a series of neurochemical impulses in a primitive part of your brain known as the limbic system -- or " mammalian brain . "
