Because non-familiar food products had not previously been tasted,
the emotion expressed by other people would indicate if this food
was good or not. The question here is: Do facial expressions of
emotions influence the desire to eat food to the same extent when
emotions toward foods are well established, that is to say, when
foods are liked or disliked? Indeed,wecanwonder if food habits and
preferences can be transmitted or modified by the social environment
(family, friends), i.e., by the emotion spontaneously expressed
on other people’s faces.