Smith A, Leekam S, Ralph A, McNeill G
MRC Perceptual and Cognitive Performance Unit, University of Sussex, Brighton, U.K.
Appetite. 1988 Jun;10(3):195-203. doi: 10.1016/0195-6663(88)90012-8.
Effects of meal composition on post-lunch changes in performance efficiency and mood were examined. Lunch had an effect on mood, with subjects feeling more lethargic, feeble, clumsy, muzzy, dreamy, bored and mentally slow after the meal. However, the composition of the lunch did not influence this effect. High starch and high sugar meals slowed reactions to visual stimuli presented in the periphery, whereas consumption of a high protein lunch was associated with greater susceptibility to distraction from stimuli close to the target. These results show that protein and carbohydrate meals affect different aspects of attention. That is, the behavioural effects of a meal depend both on its composition and on the particular nature of the activity being carried out.
研究了膳食组成对午餐后工作效率和情绪变化的影响。午餐对情绪有影响，受试者在餐后会感到更慵懒、虚弱、笨拙、头脑不清、如梦似幻、无聊且思维迟缓。然而，午餐的组成并未影响这种效果。高淀粉和高糖膳食会减缓对周边视觉刺激的反应，而食用高蛋白午餐则更容易受到接近目标的刺激干扰。这些结果表明，蛋白质和碳水化合物膳食会影响注意力的不同方面。也就是说，一顿饭的行为影响既取决于其组成，也取决于所进行活动的特定性质。
