Proximity

Proximity drop zone empty.

Closure

Closure drop zone empty.

Figure$-$ground

Figure$-$ground drop zone empty.

Ambush marketing

Ambush marketing drop zone empty.

This refers to any activity or communication that falsely implies that an organization is involved with a significant event.

This refers to presenting a stimulus in such a way that it is perceived as the focal object to be attended to and all other stimuli are perceived as the background.

This refers to the perception of stimuli positioned close together as belonging to the same category.

This refers to presenting an incomplete stimulus with the goal of getting consumers to complete it$,$ thereby becoming more involved.