Dutch scientists have created a piece of software that can identity human expressions:
utch researchers using the software recently for a consumer test project seconded what wise men have always known: Sweets are the surest way to make a woman smile.
Some 300 women in six European countries were filmed as they ate five foods: vanilla ice cream, chocolate, cereal bars, yogurt and apples. Not surprisingly, ice cream and chocolate produced the most happy expressions across the Old Continent.
Researchers chose women -- who tend to be more expressive than men -- at universities, shopping malls and city centers to test foods at face value. Cameras first recorded volunteers noshing, then participants provided a "posed" version of the expression they felt to give a more emphatic face for comparison.