Environmental cues may inform our eating habits even more than the taste of food.
"Nobody likes cold, spongy, week-old popcorn," posits Wendy Wood, a professor of psychology and business at the University of Southern California. But according to Wood's research, the grossness of popcorn is immaterial. Under the right circumstances, we'll eat it anyway.
In the hopes of unearthing the most vile human habits, researchers at USC ushered test subjets into a movie theater and gave them some popcorn. Some participants received buckets of freshly popped kernels. Others got tubs of the week-old stale stuff.