During early and middle childhood the brain becomes more efficient because ___.
A) the brain increases in size
B) myelination and synaptic pruning has continued
C) learning of motor skills has occurred
D) of developmental milestones

Question

Quizplus · Accepted Answer

During early and middle childhood, myelination (the process of coating nerve fibers with myelin, which increases the speed of impulse transmission) and synaptic pruning (the process of eliminating unused synapses to make the brain more efficient) continue, which leads to increased efficiency in information processing in the brain. This is why option B is the correct choice. Options A, C, and D are not related to the increased efficiency of the brain during this period.

During Early and Middle Childhood the Brain Becomes More Efficient