Final answer:
Self-actualization is the term used to describe a state where a human's needs are fully met, and they achieve their full potential, according to Maslow's hierarchy of needs. It represents the highest level of this hierarchy. Drive theory and arousal levels also play roles in human motivation.
Step-by-step explanation:
The term psychologists often use to describe the state in which humans are seeking a life where all needs are fulfilled is self-actualization. This concept is part of Abraham Maslow's hierarchy of needs. According to Maslow, self-actualization represents the highest level of the pyramid, where individuals achieve their fullest potential. However, before one can reach self-actualization, other lower-level needs such as physiological, safety, love and belonging, and esteem needs must be satisfied.
Drive theory explains that deviations from homeostasis create physiological needs which lead to psychological drive states directing behavior to meet those needs and thus, restoring homeostasis. Furthermore, extensions of drive theory suggest that we are also motivated to maintain optimal levels of arousal, seeking stimulation when underar oused and engaging in behaviors to reduce arousal when overar oused.