Regis, a 6-year-old, can correctly name objects, catch a ball and throw it, and write his ABCs in proper sequence. His younger brother Mark is much less speedy and skillful in all of these areas. What is the best explanation for Regis's superior performance?

Question

Quizplus · Accepted Answer

Myelination is the process of forming a myelin sheath around the axons of neurons, which speeds up neural transmission. As Regis is more speedy and skillful in naming objects, catching a ball and throwing it, and writing his ABCs in proper sequence, it can be assumed that his brain has experienced greater myelination than Mark's, which can result in superior performance.

Regis, a 6-Year-Old, Can Correctly Name Objects, Catch a Ball