According to Petty and Cacioppo,the first route to persuasion is referred to as the peripheral route and involves thought and integration of the message into the individual's previously existing cognitive structures.

Peripheral Route

A method of persuasion that relies on superficial cues rather than the merit of the message.

Cognitive Structures

Cognitive structures are mental frameworks or patterns that guide individuals in understanding the world, organizing information, and making sense of experiences.