The concept of neuroplasticity, once a contentious hypothesis, has now become a cornerstone of modern neuroscience. Historically, the adult brain was considered a structurally static organ, with neural circuits fixed after a critical period in childhood. However, research over the past two decades has demonstrated that the brain retains a remarkable capacity for reorganization throughout life, adapting to sensory input, learning, and even injury. This adaptive ability is not unlimited; it is modulated by factors such as age, the intensity of stimulation, and the availability of neurotrophic factors. Moreover, neuroplastic changes can be both beneficial and maladaptive, as seen in chronic pain where aberrant rewiring amplifies pain signals. Understanding these mechanisms holds profound implications for rehabilitation after stroke, the treatment of psychiatric disorders, and the design of educational strategies that leverage the brain's inherent flexibility.
❓ According to the passage, which of the following statements about neuroplasticity is TRUE?
A. A) The adult brain is completely fixed and unable to change after childhood.
B. B) Neuroplasticity is an unlimited process that occurs equally in all individuals.
C. C) Neuroplastic changes can sometimes have negative consequences, such as in chronic pain.
D. D) The primary factor limiting neuroplasticity is the availability of sensory input.
✅ 正确答案
C) Neuroplastic changes can sometimes have negative consequences, such as in chronic pain.
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