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 explanation for Regis's superior performance?
A) Regis most likely eats healthier foods than Mark.
B) Regis's brain has experienced greater myelination than Mark's.
C) Regis's frontal cortex is less mature than Mark's.
D) Regis has fewer dendrites than Mark.

Question

Quizplus · Accepted Answer

Myelination is the process of forming a myelin sheath around a nerve to allow nerve impulses to move more quickly and efficiently. This process occurs more rapidly in some children than in others, which may explain why Regis is able to perform certain tasks more quickly and skillfully than his younger brother.

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