The concept of 'neuroplasticity' has revolutionized our understanding of the human brain. Historically, scientists believed that the adult brain was largely fixed in structure and function 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 pruning and the formation of new neural connections, which occur in response to learning, experience, and even injury. For instance, when one sensory modality is lost, such as vision, the corresponding cortical areas may be recruited to process other senses, enhancing tactile or auditory acuity. This dynamic process is not unlimited; it is influenced by age, genetic factors, and the intensity of stimulation. Nevertheless, the implications are profound, suggesting that rehabilitation after stroke or brain injury can be optimized by targeted training, and that lifelong learning may help maintain cognitive health in aging populations.
❓ Según el pasaje, ¿cuál es la principal importancia de la neuroplasticidad?
A. Esto demuestra que el cerebro adulto es completamente inmutable.
B. Indica que el cerebro puede reorganizarse a sí mismo en respuesta a diversos factores, ofreciendo potencial para la recuperación y el mantenimiento cognitivo.
C. Esto demuestra que la pérdida sensorial siempre conduce a habilidades mejoradas en otros sentidos.
D. Sugiere que la neuroplasticidad es ilimitada independientemente de la edad o la estimulación.
✅ 正确答案
It indicates that the brain can reorganize itself in response to various factors, offering potential for recovery and cognitive maintenance.
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