Behaviour and Health Research Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB2 0SR, UK.
Centre for Emotional Health, Department of Psychology, Macquarie University, Macquarie Park, NSW, 2109, Australia.
Sci Rep. 2020 Aug 7;10(1):13362. doi: 10.1038/s41598-020-70278-6.
Reducing consumption of drinks which contain high levels of sugar and/or alcohol may improve population health. There is increasing interest in health behaviour change approaches which work by changing cues in physical environments ("nudges"). Glassware represents a modifiable cue in the drinking environment that may influence how much we drink. Here, we report three laboratory experiments measuring consumption of soft drinks served in different glasses (straight-sided vs. outward-sloped), using distinct paradigms to measure drinking. In Study 1 (N = 200), though total drinking time was equivalent, participants consumed a soft drink with a more 'decelerated' trajectory from outward-sloped tumblers, characterised by a greater amount consumed in the first half of the drinking episode. In Study 2 (N = 72), during a bogus taste test, participants consumed less from straight-sided wine flutes than outward-sloped martini coupes. In Study 3 (N = 40), using facial electromyography to explore a potential mechanism for decreased consumption, straight-sided glasses elicited more 'pursed' lip embouchures, which may partly explain reduced consumption from these glasses. Using a combination of methods, including objective measures of volume drunk and physiological measures, these findings suggest that switching to straight-sided glasses may be one intervention contributing to the many needed to reduce consumption of health-harming drinks.
减少饮用高糖和/或高酒精含量的饮料可能会改善人群健康。人们越来越关注通过改变物理环境中的提示（“助推”）来改变健康行为的方法。酒杯是饮酒环境中一种可改变的提示因素，可能会影响我们的饮酒量。在这里，我们报告了三项实验室实验，这些实验使用不同的玻璃杯（直壁杯和外倾杯）来测量软饮料的消耗量，使用不同的范式来测量饮酒量。在研究 1（N=200）中，尽管总饮酒时间相等，但参与者从外倾式平底杯饮用软饮料时，饮料的轨迹“减速”，表现在饮用过程的前半段消耗的饮料量更大。在研究 2（N=72）中，在虚假的味觉测试中，参与者从直壁葡萄酒杯饮用的饮料少于外倾马提尼酒杯。在研究 3（N=40）中，使用面部肌电图来探索减少饮酒的潜在机制，直壁玻璃杯会引起更多的“噘嘴”唇形，这可能部分解释了从这些玻璃杯饮用的饮料减少。这些发现结合了多种方法，包括对饮酒量的客观测量和生理测量，表明改用直壁玻璃杯可能是减少有害健康饮料消费所需的众多干预措施之一。
