Edwards Katie L, Thomas Jason M, Higgs Suzanne, Blissett Jacqueline
School of Psychology and Institute of Health and Neurodevelopment, Aston University, Birmingham B4 7ET, UK.
School of Psychology and Institute of Health and Neurodevelopment, Aston University, Birmingham B4 7ET, UK.
Eat Behav. 2024 Apr;53:101872. doi: 10.1016/j.eatbeh.2024.101872. Epub 2024 Mar 22.
Exposing children to adults eating a raw vegetable with positive facial expressions ('positive modelling') increases children's consumption of the modelled vegetable. However, whether repeated versus a single exposure to positive modelling enhances this effect, and whether it generalises to a non-modelled vegetable, remains to be examined. Hence, this study examined the effect of a single exposure, versus repeated, exposure to positive modelling on children's acceptance and intake of a modelled and non-modelled vegetable. Children aged 5-6 years (N = 153; 81 males, 72 females) were randomised to one of three conditions in which they had i) a single or ii) repeated exposure to a video of adults eating raw broccoli with positive facial expressions or iii) were exposed to a no-food control video. Children's acceptance (measured as willingness to try and number of tastes), intake and liking of a modelled (raw broccoli) and non-modelled vegetable (raw mangetout) were measured. Children had greater raw broccoli consumption and liking if they had received repeated exposure to positive modelling, compared to children who had received a single exposure, but not compared to children in the control condition. Children's mangetout intake was greater in the single (versus repeated) positive condition, but this effect was not dependent on time. There was no effect on children's vegetable acceptance. Repeatedly exposing children to adults enjoying a vegetable encourages children's intake of the modelled vegetable in comparison to a single exposure. Thus, repeated exposure to others' food enjoyment may be a practical and useful strategy to encourage children's vegetable consumption.
让儿童看到成年人带着积极的面部表情吃生蔬菜（“积极示范”）会增加儿童对被示范蔬菜的食用量。然而，与单次接触积极示范相比，反复接触积极示范是否会增强这种效果，以及这种效果是否会推广到未被示范的蔬菜上，仍有待研究。因此，本研究考察了单次接触与反复接触积极示范对儿童接受和摄入被示范蔬菜及未被示范蔬菜的影响。将5至6岁的儿童（N = 153；81名男性，72名女性）随机分为三个组，分别为：i）单次接触或ii）反复接触一段成年人带着积极面部表情吃生西兰花的视频，或iii）接触无食物的对照视频。测量了儿童对被示范蔬菜（生西兰花）和未被示范蔬菜（生荷兰豆）的接受程度（以尝试意愿和品尝次数衡量）、摄入量和喜好程度。与单次接触积极示范的儿童相比，反复接触积极示范的儿童食用生西兰花的量更多且更喜欢，但与对照组儿童相比则不然。在单次（而非反复）积极示范组中，儿童对荷兰豆的摄入量更多，但这种影响不取决于时间。对儿童接受蔬菜的程度没有影响。与单次接触相比，反复让儿童看到成年人享用蔬菜会促使儿童摄入被示范的蔬菜。因此，反复让儿童接触他人享受食物的情景可能是鼓励儿童食用蔬菜的一种切实可行且有用的策略。
