The improvement of fine motor skills during middle and late childhood is due to
A) increased myelination of the central nervous system.
B) advances in the prefrontal cortex.
C) an increase in the neurotransmitter dopamine.
D) a simultaneous process in which axons in the brain die, while dendrites in the brain grow and branch out.

Question

Quizplus · Accepted Answer

The myelination of the central nervous system is a key factor in the improvement of fine motor skills during middle and late childhood. Myelination refers to the growth of the myelin sheath around the axons of nerve cells, which helps to speed up the transmission of electrical impulses in the brain. As the central nervous system undergoes increased myelination during middle and late childhood, it becomes more efficient and precise in controlling fine motor movements, such as writing, drawing, and manipulating small objects. Advances in the prefrontal cortex and increases in dopamine may also contribute to this process, but the primary mechanism is myelination.

The Improvement of Fine Motor Skills During Middle and Late