The concept of neuroplasticity has revolutionized our understanding of the human brain. Historically, scientists believed that the adult brain was fixed and immutable, with neural circuits established during childhood remaining largely unchanged throughout life. However, recent research has demonstrated that the brain retains a remarkable capacity for reorganization, even in old age. This adaptability is driven by synaptic strengthening and the formation of new neural pathways in response to learning, experience, or injury. For instance, individuals who lose their sight often exhibit enhanced auditory or tactile processing, as the brain reallocates cortical resources to remaining senses. While neuroplasticity offers therapeutic potential for conditions like stroke or chronic pain, its limits remain debated. Critics argue that the concept is sometimes overstated, leading to unrealistic expectations about recovery. Nevertheless, the paradigm shift from a static to a dynamic view of the brain has profound implications for education, rehabilitation, and our fundamental understanding of human identity.
❓ According to the passage, which of the following best reflects the author's main point about neuroplasticity?
A. Neuroplasticity proves that the adult brain is completely adaptable and has no limits, allowing full recovery from any brain injury.
B. The discovery of neuroplasticity challenges the old belief of a fixed brain, but its practical scope is still subject to debate.
C. Neuroplasticity only occurs in response to sensory loss, such as blindness, and does not apply to normal learning processes.
D. The concept of neuroplasticity has been universally accepted by scientists without any criticism or controversy.
✅ 正确答案
The discovery of neuroplasticity challenges the old belief of a fixed brain, but its practical scope is still subject to debate.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
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