Seeing pictures of food affects taste perception

The authors of the study, led by Johannes le Coutre of the Nestlé Research Center in Switzerland, found that participants reported tastes to be more pleasant when preceded by images of high-calorie foods, such as pizza or pastry, as compared to low-calorie foods like watermelon or green beans.

The researchers conducted neuroimaging studies that identified previously unknown brain mechanisms of visual-gustatory sensory interactions involved with food enjoyment.

Taken together, the study highlights the importance of visual food appeal as one determinant for nutritional reward.