Blass Elliott M, Anderson Daniel R, Kirkorian Heather L, Pempek Tiffany A, Price Iris, Koleini Melanie F
Department of Psychology and Program in Neuroscience and Behavior, University of Massachusetts, Amherst, MA 01003, USA.
Physiol Behav. 2006 Jul 30;88(4-5):597-604. doi: 10.1016/j.physbeh.2006.05.035. Epub 2006 Jul 5.
Television viewing (TVV) has been linked with obesity, possibly through increased sedentary behavior and/or through increased ingestion during TVV. The proposition that TVV causes increased feeding, however, has not been subjected to experimental verification until recently. Our objective was to determine if the amount eaten of two familiar, palatable, high-density foods (pizza and macaroni and cheese) was increased during a 30-min meal when watching TV. In a within-subjects design, one group of undergraduates (n = 10) ate pizza while watching a TV show of their choice for one session and when listening to a symphony during the other session. A second group of undergraduates (n = 10) ate macaroni and cheese (M&C). TVV increased caloric intake by 36% (one slice on average) for pizza and by 71% for M&C. Eating patterns also differed between conditions. Although the length of time to eat a slice of pizza remained stable between viewing conditions, the amount of time before starting another slice was shorter during TVV. In contrast, M&C was eaten at a faster rate and for a longer period of time during TVV. Thus, watching television increases the amount eaten of high-density, palatable, familiar foods and may constitute one vector contributing to the current obesity crisis.
看电视与肥胖有关，可能是通过增加久坐行为和/或在看电视期间增加摄入量。然而，直到最近，看电视会导致进食量增加这一观点尚未经过实验验证。我们的目标是确定在观看电视的30分钟用餐过程中，两种常见、美味、高热量食物（披萨和通心粉奶酪）的摄入量是否会增加。在一项受试者内设计中，一组本科生（n = 10）在一个时间段观看他们选择的电视节目时吃披萨，在另一个时间段听交响乐时吃披萨。另一组本科生（n = 10）吃通心粉奶酪。看电视时，披萨的热量摄入增加了36%（平均一片），通心粉奶酪的热量摄入增加了71%。不同条件下的进食模式也有所不同。虽然在不同观看条件下吃一片披萨的时间长度保持稳定，但在看电视期间开始吃下一片之前的时间更短。相比之下，在看电视期间，通心粉奶酪的进食速度更快，进食时间更长。因此，看电视会增加高热量、美味、常见食物的摄入量，可能是导致当前肥胖危机的一个因素。
