Final answer:
Functionalism in psychology views the mind as an activity carried out by the brain to help organisms adapt to their environment.
Step-by-step explanation:
Functionalism in psychology holds that the mind is the collection of brain functions. It views the mind as an activity carried out by the brain, rather than a separate entity. Functionalists focus on how mental activities help organisms adapt to their environment. William James, John Dewey, and Charles Sanders Peirce were proponents of functionalism, which emphasized the study of the function of behavior in the world.