The concept of 'neuroplasticity' has revolutionized our understanding of the brain's capacity for change. Historically, it was 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 remains highly adaptable throughout life, capable of reorganizing its structure and function in response to experience, injury, or learning. This plasticity occurs at multiple levels, from synaptic strengthening to large-scale cortical remapping. For instance, individuals who lose their sight often exhibit enhanced tactile and auditory processing, as the visual cortex is recruited for other sensory modalities. Such findings have profound implications for rehabilitation, education, and the treatment of neurological disorders. Nevertheless, plasticity is not unlimited; it diminishes with age and is influenced by genetic and environmental factors. Understanding these constraints is crucial for developing effective therapeutic interventions.
❓ Según el pasaje, ¿cuál de las siguientes afirmaciones es verdadera respecto a la neuroplasticidad?
A. A. El cerebro adulto está completamente fijo y no puede cambiar después de la infancia.
B. B. La neuroplasticidad ocurre solo en la corteza visual del cerebro.
C. C. La plasticidad cerebral permite la reorganización en respuesta a experiencias o lesiones, pero tiene limitaciones.
D. D. La plasticidad es ilimitada y no se ve afectada por la edad ni por factores genéticos.
✅ 正确答案
C. Brain plasticity allows for reorganization in response to experiences or injuries, but it has limitations.
IELTS Reading Tips
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