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"Vegetables ... vitamin E," said lead author Martha Clare Morris, 

Chicago's Rush University Medical Center

Neurology

1,946

short-term

"Vegetables generally contain more vitamin E than fruits. Vegetables also are often eaten with healthy fats such as salad oils, which help the body absorb vitamin E," said lead author Martha Clare Morris, a researcher at Chicago's Rush University Medical Center. 　　The study was published in this week's issue of the journal Neurology. 　　The research involved 1,946 people aged 65 and older who filled out questionnaires about their eating habits. They also had mental function tests three times over about six years. 　　The tests included measures of short-term and delayed memory, which asked these older people to recall elements of a story that had just been read to them. The participants also were asked to recognize symbols and numbers on different cards.
“一般来说蔬菜所含的维生素E比水果含的多。而且蔬菜经常和沙拉油等有益健康的脂肪一起被食用，这有助于人体更好地吸收维生素E，”研究报告的主要作者，芝加哥RUSH大学医疗中心的玛撒·克莱尔·莫里斯研究员如是说。 　　这项研究发表在本周出版的《神经学》杂志上。 　　有1946名年龄在65岁以上（含65岁）的老人参与了调查，填写了有关他们饮食习惯的问卷。在这六年中，他们还接受了三次大脑功能的测试。 　　测试内容包括衡量他们的短期和延时记忆，也就是让这些老人回忆刚给他们讲过的故事内容，同时还要求老人们辨认不同卡片上的符号和数字。