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衰退是老年人共同的生理现象,是不可阻挡的自然规律。不过,脑力的衰退不一定都与年龄的增长成正比。有些高龄老人会像年轻人那样神采奕奕,没有出现智力退化的现象。美国西北大学范伯格医学院的研究者发现,年老以后也能保持大脑敏锐的一类人,大脑皮质层更厚,拥有更充沛的神经元。研究者们称这类老人为“超级老人”。核磁共振成像技术拍摄的图像显示,“超级老人”的大脑皮层大小与中年人的相当。研究人员认为这个发现很重要,因为大脑皮层对记忆力和注意力至关重要。一般总是
Recession is a common physiological phenomenon of the elderly is an irresistible natural law. However, mental decline does not always have to do with age. Some elderly people are as gifted as young people and no degeneration of intelligence occurs. Researchers at the Feinberg School of Medicine at Northwestern University in the United States found that people who are keen on their brains after age are thicker and have more neurons. Researchers call such seniors “super seniors.” Images taken by magnetic resonance imaging show that the size of the “super-elderly” cerebral cortex is comparable to that of middle-aged people. Researchers think this finding is important because the cerebral cortex is crucial for memory and attention. Generally always