When does the window of opportunity for learning language begin to close?

When does the window of opportunity for learning language begin to close?

• A. Around 5 Years old and greatly diminishes around puberty
• B. At birth
• C. Around age 10
• D. In adolescence

Answer: (A)

Language learning has a period early in life when the brain is especially plastic and ready to absorb language from exposure. During these early years, children pick up grammar, vocabulary, and pronunciation with remarkable ease. As children grow, that window narrows. By around five years old, the ease of achieving native-like language skills begins to decline, and around puberty the decline becomes much more pronounced, making it significantly harder to attain native proficiency in a new language. This pattern explains why earlier exposure matters so much for high-level language mastery. Other options don’t fit because they imply the window closes too late or too early. Learning at birth is far from closing instantly—the brain is most receptive in infancy. Delaying to around age ten or to adolescence doesn’t align with the sharp shift that occurs near puberty, where the decline in ultimate attainability becomes most evident.

Language learning has a period early in life when the brain is especially plastic and ready to absorb language from exposure. During these early years, children pick up grammar, vocabulary, and pronunciation with remarkable ease. As children grow, that window narrows. By around five years old, the ease of achieving native-like language skills begins to decline, and around puberty the decline becomes much more pronounced, making it significantly harder to attain native proficiency in a new language. This pattern explains why earlier exposure matters so much for high-level language mastery.

Other options don’t fit because they imply the window closes too late or too early. Learning at birth is far from closing instantly—the brain is most receptive in infancy. Delaying to around age ten or to adolescence doesn’t align with the sharp shift that occurs near puberty, where the decline in ultimate attainability becomes most evident.