-
(单词翻译:双击或拖选)
This is Scientific American’s 60-Second Science, I’m Cynthia Graber. This will just take a minute.
Dieters may try to estimate a meal’s calorie count. Now a study by Northwestern University’s Alexander Chernev finds that even the order in which food is presented—and whether the food is thought of as a vice1 or a virtue—affects how many calories we think it has. The work will be published in 2011 in the Journal of Consumer Research.
Study subjects were shown a cheese-steak first, which they guessed had on average 578 calories. Or they saw a virtuous2 fruit salad first, which they guessed was 311 calories. After which they estimated the same cheese-steak as having 787 calories.
But when first shown the vice of a slice of chocolate cake, which they guessed had 416 calories; subjects estimated that the same cheese-steak wasn’t much worse of a vice, at only 489 calories. So estimates of the cheese-steak calorie content went up when it followed fruit salad, but went down when subjects first considered a slice of cake.
An absurd outcome of this was that subjects estimated a cheesesteak and cake combo as having fewer calories than a fruit salad-cheesesteak one. So remember, when you’re counting calories, you can’t rely on gut3 feelings.
Thanks for the minute, for Scientific American’s 60-Second Science. I’m Cynthia Graber
1 vice | |
n.坏事;恶习;[pl.]台钳,老虎钳;adj.副的 | |
参考例句: |
|
|
2 virtuous | |
adj.有品德的,善良的,贞洁的,有效力的 | |
参考例句: |
|
|
3 gut | |
n.[pl.]胆量;内脏;adj.本能的;vt.取出内脏 | |
参考例句: |
|
|