The concept of 'neuroplasticity' has revolutionized our understanding of the human brain. Historically, scientists believed that the adult brain was largely fixed, with neural circuits becoming immutable after a critical period in childhood. However, recent research demonstrates that the brain retains a remarkable capacity for reorganization throughout life. This adaptability is driven by synaptic strengthening, the formation of new neural pathways, and, in some regions, the generation of new neurons. Neuroplasticity is not merely a passive response to injury; it is fundamental to learning, memory, and even recovery from stroke. Studies show that engaging in novel, cognitively demanding activities can enhance plasticity, while chronic stress or sensory deprivation can suppress it. This has profound implications for education and rehabilitation, suggesting that targeted interventions can harness the brain's malleability to improve outcomes in both healthy aging and neurological disorders.
❓ Según el pasaje, ¿cuál de las siguientes opciones describe mejor el hallazgo principal sobre el cerebro adulto?
A. A) El cerebro adulto está completamente fijo y no puede cambiar después de la infancia.
B. B) El cerebro adulto sigue siendo capaz de una reorganización estructural y funcional significativa.
C. C) La neuroplasticidad solo ocurre en respuesta a una lesión cerebral.
D. D) Las actividades novedosas no tienen ningún efecto sobre la plasticidad cerebral.
✅ 正确答案
B) The adult brain remains capable of significant structural and functional reorganization.
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