Final answer:
In humanistic therapy, individuals undergoing therapy are referred to as clients, which underpins the client-centered approach foundational to humanistic psychology, particularly as developed by Carl Rogers and informed by Abraham Maslow's theories.
Step-by-step explanation:
Humanistic therapists refer to those in therapy as clients rather than patients, emphasizing the person-centered nature of the therapy. Carl Rogers, a pioneer of humanistic psychology, developed client-centered therapy, which is grounded in principles like unconditional positive regard, genuineness, and empathy. This approach reflects the humanistic view that each individual has an innate capacity for self-actualization and a desire to achieve their fullest potential, as theorized by both Rogers and Abraham Maslow. Humanistic therapy thus focuses on personal growth and self-determination, distinguishing itself from the deterministic views of psychoanalysis and the reactive stance of behaviorism. It places significant importance on the healthy development of individuals and their potential for positive change and personal transformation.