3) Contrast thresholdThe minimum difference in contrast when alerting the two receptors to the size and quality of the stimuli is called contrast threshold. Advertising studies, such as improvements in product quality and product development dimensions; should be adjusted to the amount of the difference. In this case, the difference between the initial stimulus and the redesigned stimulus can be perceived by consumers.4) Sensory CodingIf we explain sensory coding within an example; the bittersweet taste sensation does not happen in our tongue, it happens in our brain, but the taste experience in the brain impulses is also caused by electrical impulses in the taste receptors on the tongue. Therefore, our receptors play an important role when we associate external factors with our natural life. Our conscious perceptions of numerous aspects are caused by special neural events that occurred in the receptors. The receptors and connection passages encode the intensity and quality of the stimuli.5) Sensory harmony Sensory harmony occurs when the organism is exposed to continuous or repeated stimulation and its sensitivity is reduced accordingly. By all senses environmental changes provide a better response to a steady state and when nothing has changed all receptors react together or are used. For example, when you start your refrigerator, you will only notice the noise when you open it, not after. Consequently, the intensity of the perceived harmony, the absolute threshold and the contrast threshold changes.C) Sensory systems Each of the senses is an element that connects us to the external world. The senses, from time to time, can be a guide to the mind and from time to time the mind can be more po...... the center of the card...... is sweet, the sides have a flavor acidic, the back has a spicy taste and the other parts include the salty taste better (Lindstrom, 2005:40). The sense of taste is one of the sensual factors that conditions consumers' perception of the brand. Taste perception is associated with brand image in the minds of consumers. Brand identification without consumer experience is completely different. The perception of taste varies between countries and cultures. Therefore, international brands, especially in different culinary cultures or in countries with a strong herbal tradition, in order to facilitate local acceptance and use local flavors as materials. Branding experience by adding some flavors can open doors to a new world. Products, promotional items, packaging, marketing materials, events, etc. the branding of reflective elements is used to create the perception of a taste.