Final answer:
Under exercise and sport psychology, motor learning is the area of study related to acquiring and refining motor skills, which is crucial in sports performance.
Step-by-step explanation:
The area of study under the umbrella of exercise and sport psychology that the student is inquiring about is motor learning. Exercise and sport psychology encompasses the research on psychological aspects of sport performance such as motivation, performance anxiety, and the mental effects of sport and physical exercise.
Motor learning is specifically related to how we acquire and refine motor skills, which is a poignant topic in understanding how individuals learn to move and perform in sports effectively.