During adolescence, many hours per day of repeating a task will thicken the area of the brain's cortex responsible for that task.

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Quizplus · Accepted Answer

This statement is true. The brain's cortex is known to undergo structural changes in response to repeated activities or tasks, a process known as experience-dependent plasticity. During adolescence, the brain is still developing, and repeated engagement with certain tasks can lead to the thickening of the relevant cortical areas, as well as other changes in brain connectivity and function.

During Adolescence, Many Hours Per Day of Repeating a Task