This study introduce measures of personality traits in an experiment which associate willingness to pay for food and sensory analysis tools in order to explore potential links between personality and food decisions. Measure of personality traits comes from experimental economics (risk aversion and time preference) and from psychology (sensation seeking and impulsivity). We introduce them in the analysis of behaviours of participants in their food decisions (purchase intent, willingness to pay, reaction to new information), and underline some significant links.