Pupil dilation is an involuntary response to emotional and cognitive stimuli. It is linked to dopamine release, sharpening focus and engagement.
The Diet Coke ad (2013) built suspense with slow motion, eye contact and lighting. The emotional tension heightened consumer recall and brand connection.
Emotionally engaging ads keep consumers focused, encourage emotional mirroring and enhance memory retention through excitement and anticipation.
Luxury stores use lighting to create exclusivity, while digital eye-tracking shows users engage more with expressive faces in marketing content.