A methodological proposal based on Signal Detection Theory for the study of dissociation between sensory and decision processes in the context of olive oil tasting

作者：Ramos Alvarez Manuel M^*; Moreno Fernandez Maria M; Paredes Olay Concepcion; Rosas Juan M

来源：Food Quality and Preference, 2013, 28(1): 71-76.

DOI：10.1016/j.foodqual.2012.09.004

• Decision criterion
• Instructions
• Olive oil tasting
• Robust analysis of variance
• Stimulus intensity
• Response criterion
• Signal detection theory

An experiment evaluated a Signal Detection Theory (SDT) approach to olive oil tasting research within laboratory conditions akin to ecological tasting situations. Participants confronted a tasting situation in which olive oil concentration (0.4%, 0.8% or 1.6%) and instructions (lenient or conservative) were manipulated in a full factorial between-subjects design. Results were analyzed using a variety of measures of sensitivity and bias, both parametric and non-parametric, as well as robust statistics. Olive oil concentration only affected sensory processes while instructions only affected decision processes. Non-parametric indices of sensitivity A%26apos; and bias B%26apos;(D), and robust analysis of variance were, both conceptually and methodologically, the most suitable for separately measuring sensory and decision processes in the context of olive oil tasting.

• 出版日期2013-4