The concept of 'cognitive reserve' has gained traction in neuroscience as a potential explanation for individual differences in resilience to age-related cognitive decline. This theory posits that engaging in intellectually stimulating activities throughout life, such as reading complex literature or acquiring new skills, builds a surplus of neural connections. This surplus allows some individuals to maintain normal cognitive function even when faced with brain pathology, such as Alzheimer's disease. Importantly, the reserve is not merely a static trait but a dynamic product of lifelong experiences. Consequently, interventions aimed at enhancing cognitive reserve in midlife may offer a promising, non-pharmacological strategy to delay the onset of dementia symptoms, though the precise mechanisms underlying this protective effect remain an area of active investigation.
❓ Según el pasaje, ¿cuál es la función principal de la reserva cognitiva?
A. A. Prevenir por completo el desarrollo de la enfermedad de Alzheimer.
B. B. Para permitir que los individuos compensen el daño cerebral y mantengan un funcionamiento normal.
C. C. Para aumentar la velocidad del procesamiento neuronal en adultos jóvenes.
D. D. Para reemplazar la necesidad de tratamientos farmacológicos en la demencia.
✅ 正确答案
B. To enable individuals to compensate for brain damage and maintain normal functioning.
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