Best Talitha, Kemps Eva, Bryan Janet
School of Psychology, Flinders University, Adelaide, SA, Australia
Nutr Neurosci. 2007 Jun-Aug;10(3-4):113-20. doi: 10.1080/10284150701413170.
The current study investigated the relationship between dietary intake of saccharides and cognitive performance.
The study used a cross-sectional correlational design in which the relationship between saccharide intake and cognitive performance was investigated among younger and middle-aged adults.
Forty-two young adults (18-30 years) and 42 middle-aged adults (45-62 years) completed a food diary on three non-consecutive days during 1 week in order to estimate dietary saccharide intake. In addition, participants completed a battery of cognitive measures that included measures assessing memory (verbal and visuo-spatial recall and recognition, working memory), speed of processing, attention and general cognitive ability.
Results indicated that saccharide intake was related to performance only in verbal memory recall, and only for the middle-aged adults. Importantly, saccharide intake remained a significant predictor of verbal memory performance after controlling for education and health factors such as smoking, alcohol consumption and exercise.
本研究调查糖类的饮食摄入量与认知表现之间的关系。
本研究采用横断面相关设计，在年轻和中年成年人中调查糖类摄入量与认知表现之间的关系。
42名年轻成年人（18至30岁）和42名中年成年人（45至62岁）在1周内连续3天记录食物日记，以估计饮食中糖类的摄入量。此外，参与者完成了一系列认知测试，包括评估记忆（言语和视觉空间回忆与识别、工作记忆）、处理速度、注意力和一般认知能力的测试。
结果表明，糖类摄入量仅与中年成年人的言语记忆回忆表现有关。重要的是，在控制了教育和健康因素（如吸烟、饮酒和运动）后，糖类摄入量仍然是言语记忆表现的显著预测因素。
