The first age at which performance was significantly lower than the peak scores was 27 – for three tests of reasoning, speed of thought and spatial visualisation.

从逻辑推理、反应速度和空间想象力三项测试的结果来看，调查对象的得分首次明显低于之前的最高水平是在27岁。

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But by 4 or 5 years of age, your child should have the ability to grasp the reasoning behind such a rule.

但是在4岁或者5岁的时候，孩子就应该有能力理解这一规矩后面的原由。

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They are collaborating with UC Berkeley neuroscientists who use games to improve the prefrontal cortex function, and thus the reasoning ability, of school-age children.

为此他们和伯克利神经学家合作看是否能通过游戏来提高学龄儿童的大脑额叶机能，比如：分析能力。

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