Describe the brain development processes in infancy, including myelination and synaptic pruning, and their behavioral implications.

Describe the brain development processes in infancy, including myelination and synaptic pruning, and their behavioral implications.

• A. Infancy involves no synaptogenesis; brain development is static.
• B. Rapid synaptogenesis and early myelination expand neural connections; selective pruning and continued myelination support processing, motor control, and learning; school-age improvements reflect these changes.
• C. Myelination decreases processing speed.
• D. Synaptic pruning happens before synaptogenesis.

Answer: (B)