Pascal Schlich is a director of research with the INRA and the scientific leader of the ChemoSens platform at the Centre des Sciences du Goût et de l'Alimentation in Dijon. He holds a Ph.D. in statistics from the University Paris XI and the accreditation for tutoring Ph.Ds from the Burgundy University. His research deals with sensometrics (statistics for sensory sciences) and the study of consumer preferences. Pascal Schlich has signed or co-signed a hundred of scientific articles or book chapters and is the co-inventor of the TimeSens® software. He teaches sensometrics at AgroSup Dijon, ENSAI Rennes and Montpellier University and is an international consultant for several industries.
Sensory profiling is a technique of sensory analysis recording attributes intensities, but providing no indication on the sequence along which these attributes are perceived. Pascal Schlich and his team developed the Temporal Dominance of Sensations (TDS) method about 12 years ago to fill in this gap. In TDS the subject is asked to indicate at any time the “dominant” attribute, the one trigging his/her attention, not necessarily the most intense one.
TDS has become a reference method in sensory analysis. Contrarily to sensory profiling, it can be used with no training, thus by consumer panels. It makes it possible to pair TDS to dynamic recording of liking, satiation and emotions along the consumption of the full portion of a food or beverage in order to identify the temporal drivers of these three features.