The concept of 'neuroplasticity' has revolutionized our understanding of the human brain. Historically, scientists believed that the adult brain was structurally fixed, with neural pathways established during childhood remaining immutable. However, recent research has demonstrated that the brain retains a remarkable capacity for reorganization throughout life. This adaptability is driven by synaptic pruning and the formation of new neural connections in response to learning, experience, or injury. For instance, individuals who lose their sight often exhibit enhanced auditory or tactile processing, as the visual cortex is repurposed for other sensory modalities. Neuroplasticity also underpins cognitive rehabilitation after stroke, where undamaged brain regions can assume functions previously performed by damaged areas. While the mechanisms are complex, involving molecular cascades and environmental enrichment, the implications are profound: they challenge deterministic views of intelligence and offer hope for therapeutic interventions in neurological disorders.
❓ According to the passage, what is the primary significance of neuroplasticity?
A. It proves that the adult brain is completely fixed and unchangeable.
B. It demonstrates that the brain can reorganize itself in response to various factors, offering potential for recovery and adaptation.
C. It indicates that visual cortex is only used for vision and cannot be repurposed.
D. It suggests that cognitive rehabilitation after stroke is ineffective.
✅ 正确答案
It demonstrates that the brain can reorganize itself in response to various factors, offering potential for recovery and adaptation.
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