Which of the following is NOT one of the four stages of the sexual response cycle?

The sexual response cycle is commonly described in four stages: excitement, plateau, orgasm, and resolution. While desire is a significant component of sexual experiences and can influence the entire cycle, it is not classified as one of the formal stages of the sexual response cycle itself. The first stage, excitement, involves physiological changes such as increased heart rate and blood flow, followed by plateau, where sexual tension builds. Orgasm is the climax of sexual experience, leading into the resolution phase where the body returns to its resting state. Thus, desire, while integral to sexual experience, does not constitute a defined stage within this cycle.