People can learn how to respond to a specific stimulus. This is called classic conditioning. It is the first discovered method of conditioning and is made familiar by Pavlov.
Prime idea of classic conditioning is stimulus pairing. Which is the offering of an unconditioned stimulus and a neutral stimulus. Pavlov - in his famous experiments - offered food (the unconditioned stimulus) and a little bell (the neutral stimulus). The unconditioned stimulus is the natural reflex on a stimulus. In Pavlov's experiment the production of saliva was the natural response on food for dogs.
Pavlov kept offering the food and the little bell. Over time the bell (neutral stimulus) got the same value as the unconditioned stimulus (food). Resulting into the effect that the bell let dogs produced saliva, even when there was no food in sight.
Within organisations classic conditioning occurs as well. For example, a manager that reacts agitated and irritated might be related by its team members with negative emotions.
Classic conditioning can be used in your advance. To do so, it is important for leaders to focus on positive emotions and positive experiences. Emphasise behaviour that you want to see and experience more.