According to the Focus on Neuroscience box on the adolescent brain, the amount of gray matter in the brain peaks at about age 11 for girls and age 12 for boys.

Question

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During adolescence, the brain undergoes significant changes, including the peak of gray matter volume, which typically occurs around age 11 for girls and age 12 for boys, reflecting the timeline of brain maturation.

According to the Focus on Neuroscience Box on the Adolescent