Pavlov conditioned a dog to salivate at a metronome sound that was paired with a meat stimulus. after the cs–ucs linkage was strongly established, pavlov then presented the dog with several flashes of a light followed by the metronome sound. after a few days, when the light flashes were presented by themselves, the dog salivated. this is an example of

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.