Who says that the study of the mind should focus on how it allows us to adapt to your surroundings?

The idea that the study of the mind should focus on how it allows us to adapt to our surroundings is often associated with functionalist psychologists, particularly William James. James emphasized the importance of understanding mental processes in terms of their practical functions and how they help individuals navigate and thrive in their environments. This perspective laid the groundwork for later developments in psychology, including evolutionary psychology, which examines how cognitive functions have evolved to solve adaptive problems.