Group patterns of cognitive sensory evaluation based on multi-layer consciousness

Abstract

In spite of unknown cognitive mechanism of the judgment of sensory response, sensory evaluation based on panel test is widely used all over the world. Many works on sensory evaluation methodology faced non reproducible results due to individual variance in food life. To resolve these problems, cognitive sensory evaluation using cognitive sensory barcode and frequency curve, were developed and tested. Questionnaire consisted of subjective and objective parameters include 158 items was designed and tested with 3 groups consisted of 148 individuals of different university using potato flake. From the answered data, cognitive sensory barcode and frequency curve were obtained using new method developed through this study. Clustering analysis showed the consistent trend of grouping into eight subgroups based on their sensory patterns and consciousness characteristics. To investigate role of consciousness, single consciousness layer and its combinations with other layers, were tested on the effect of clustering phenomena, and showed that 7TH and 8TH consciousness layers played major role. Correlation analysis between sensory and consciousness elements indicated that consciousness elements were important factor associated to the food preference of individual and group of individuals. The major significant consciousness elements affect total preference were education level of family, eating frequency, direction of association, preference of family and willingness. Particularly, direction of association (PCC=0.50678) and preference of family (PCC=0.69938) showed higher association with total preference. Correlation result that elements of preference not belonged to same part of five senses affected other elements belonged to other part, indicated that the preference responses associated with five senses are not independent with others. These results are positive evidences of proving cognitive sensory theory based on multi-layer consciousness.