1. Sensory process

The perception of a stimulus results from the processing of information by the sensory system. Information is primarily sensory, as it is processed in real time without reference to previous events. Perception is constructed by taking sensation into account and drawing on past experience. This assembly can confer a symbolic value on the product or, through physiological processes, trigger a desired emotion in the consumer, often a positive one .

In the physiological diagram, sensation is a bottom-up process that brings external information...