[Thurstone model application to difference sensory tests]. / Aplicación del modelo de Thurstone a las pruebas sensoriales de diferencia.
Arch Latinoam Nutr
; 59(4): 349-57, 2009 Dec.
Article
em Es
| MEDLINE
| ID: mdl-20677448
ABSTRACT
Part of understanding why judges perform better on some difference tests than others requires an understanding of how information coming from the mouth to the brain is processed. For some tests it is processed more efficiently than others. This is described by what has been called Thurstonian modeling. This brief review introduces the concepts and ideas involved in Thurstonian modeling as applied to sensory difference measurement. It summarizes the literature concerned with the theorizing and confirmation of Thurstonian models. It introduces the important concept of stimulus variability and the fundamental measure of sensory difference d'. It indicates how the paradox of discriminatory non-discriminators, which had puzzled researchers for years, can be simply explained using the model. It considers how memory effects and the complex interactions in the mouth can reduce d' by increasing the variance of sensory distributions.
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Base de dados:
MEDLINE
Assunto principal:
Limiar Gustativo
/
Percepção Gustatória
/
Modelos Biológicos
Limite:
Humans
Idioma:
Es
Revista:
Arch Latinoam Nutr
Ano de publicação:
2009
Tipo de documento:
Article