How does processing speed change over adolescence?

How does processing speed change over adolescence?

• A. It remains constant across adolescence.
• B. It decreases due to fatigue and distractions.
• C. It increases and adolescents solve problems more quickly.
• D. It improves only with practice but not due to brain changes.

Answer: (C)

Processing speed refers to how quickly someone can take in information, think, and respond. During adolescence, this speed tends to increase because the brain is maturing. White matter increases and axons become more myelinated, which speeds up communication between brain regions involved in attention, working memory, and problem solving. As these neural pathways become more efficient, adolescents can solve problems faster and with less mental effort. While practice and familiarity can help on specific tasks, the primary driver is brain development, not just repeated use. Some individuals may show different trajectories, and improvements can continue into early adulthood for more complex skills, but the general trend is faster processing speed during adolescence.

Processing speed refers to how quickly someone can take in information, think, and respond. During adolescence, this speed tends to increase because the brain is maturing. White matter increases and axons become more myelinated, which speeds up communication between brain regions involved in attention, working memory, and problem solving. As these neural pathways become more efficient, adolescents can solve problems faster and with less mental effort. While practice and familiarity can help on specific tasks, the primary driver is brain development, not just repeated use. Some individuals may show different trajectories, and improvements can continue into early adulthood for more complex skills, but the general trend is faster processing speed during adolescence.