Temporal dominance of sensations TDS as a sensory profiling technique

The first visualization and analysis of TDS data were presented 3 years later at the Pangbom symposium (Pineau et al., 2003) and started to be used by several companies. This method is nowadays well established in the sensory domain and has been successfully applied to many product categories. 

This chapter first introduces the TDS method and its specificities. The focus is then on how properly to set a TDS experiment and train the panel, before digging into the analysis part. The chapter ends with some examples of applications that have 

Rapid Sensory Profiling Techniques and Related Methods. http //dx.doi.oi l0.1533/9781782422587.2.269 Copyright 2015 Elsevier Ltd All rights reserved. 

Rapid Sensory Profiling Techniques and Related Methods 

To summarize TDS data and get a descriptive picture of each product, the most common representation is the TDS curve. The procedure (Section 13.4.2) considers each attribute separately. For each point of time, the proportion of evaluations (subject X replication) for which the given atUibute was assessed as dominant is computed. These proportions are smoothed over time (e.g. using moving average or a more sophisticated algorithm such as SAS/TRANSREG) and displayed as curves of the evolution of the dominance rate for each attribute. In the example of Fig. 13.2, the 

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Temporal dominance of sensations (TDS) as a sensory profiling technique... 

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