Final answer:
The aim of drive reduction is to maintain homeostasis, which is the constant internal state of the body. Deviations from homeostasis create needs that result in psychological drive states, directing behavior to meet the need and bring the body back to homeostasis.
Step-by-step explanation:
The aim of drive reduction is to maintain a constant internal state, called homeostasis. According to the drive theory of motivation, deviations from homeostasis create physiological needs that result in psychological drive states. These drive states direct behavior to meet the need and ultimately bring the system back to homeostasis. Homeostasis refers to the maintenance of equilibrium around a specific value of some aspect of the body or its cells. When a change in the internal or external environment occurs, the body's systems adjust their activities to move the value back toward the set point.