The concept of 'neuroplasticity' has revolutionized our understanding of the human brain. Historically, it was believed that the adult brain was structurally fixed after a critical period in childhood. However, recent research demonstrates that the brain retains the remarkable ability to reorganize its neural pathways throughout life. This adaptability occurs in response to learning, experience, or even injury. For instance, when one sensory modality is lost, such as vision, the corresponding cortical areas may be recruited to process input from other senses, like touch or hearing. This phenomenon underscores the brain's dynamic nature, yet it is not without limits. Neuroplastic changes require substantial effort and repetition, and the extent of reorganization diminishes with age. Consequently, while the brain is far more malleable than once assumed, its plasticity is constrained by biological and temporal factors.
❓ Theo đoạn văn, hạn chế chính của tính dẻo thần kinh trong não người trưởng thành là gì?
A. Não bộ hoàn toàn mất khả năng thay đổi sau thời thơ ấu.
B. Thay đổi dẻo chỉ xảy ra khi mất đi cảm giác.
C. Năng lực tổ chức lại đòi hỏi nỗ lực và suy giảm theo tuổi tác.
D. Tính dẻo dai của thần kinh là không giới hạn và xảy ra mà không cần bất kỳ kích thích bên ngoài nào.
✅ 正确答案
The capacity for reorganization requires effort and declines with age.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first