The difference is in positive reinforcement you do something; in negative reinforcement you take away something aversive.

区别就是，在正强化中你接受某种刺激;,而在负强化中你回避了某种厌恶刺激。

耶鲁公开课 - 心理学导论课程节选

A reinforced trial is when the conditioned stimulus and the unconditioned stimulus go together.

强化尝试是指条件刺激,与无条件刺激同时出现的时候。

耶鲁公开课 - 心理学导论课程节选

And so, the behaviorist manifesto would then be to develop a science without anything that's unobservable and instead use notions like stimulus and response and reinforcement and punishment and environment that refer to real world and tangible events.

因此，行为主义者的目标,是建立一门科学,将一切不可观测的事情都排除在外,取而代之的是应用,诸如刺激，反应，强化，惩罚,以及表示现实世界和客观事件的环境,之类的概念来进行研究。

耶鲁公开课 - 心理学导论课程节选