The concept of 'neuroplasticity' has revolutionized our understanding of the human brain. Traditionally, scientists believed that the adult brain was largely fixed, with neural circuits becoming rigid after a critical period in childhood. However, research over the past two decades has demonstrated that the brain remains remarkably adaptable throughout life, capable of reorganizing its structure and function in response to experience. This plasticity is not unlimited; it is influenced by factors such as age, genetics, and the intensity and timing of stimulation. For instance, while stroke patients can often regain lost functions through intensive rehabilitation, such recovery is typically more pronounced in younger individuals. Moreover, neuroplastic changes can be maladaptive, as seen in chronic pain conditions where neural pathways become sensitized. Understanding these nuances is crucial for developing targeted therapies for neurological disorders, moving away from a one-size-fits-all approach.
❓ Which of the following statements best reflects the main idea of the passage?
A. A. The adult brain is completely fixed and cannot change after childhood.
B. B. Neuroplasticity allows the brain to adapt, but this ability is constrained by various factors and can sometimes be harmful.
C. C. Stroke patients always recover fully regardless of age due to neuroplasticity.
D. D. Neuroplasticity is only beneficial and occurs equally in all individuals.
✅ 正确答案
B. Neuroplasticity allows the brain to adapt, but this ability is constrained by various factors and can sometimes be harmful.
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