Análisis discreto vs continuo de expresiones faciales generadas por bebidas amargas en grupos poblacionales de diferente IMC (Índice de masa corporal)

ROCHA PARRA DIEGO FERNANDO; LEÓN BIANCHI LUCIANA; GENTICO FERNANDO; GARCIA-BURGOS DAVID; ZAMORA MARIA CLARA

Congreso; I Congreso Latinoamericano de Ciencias Sensoriales y del Consumidor; 2020

aim of the present study was to compare the information provided by a discrete andcontinuous data analysis of two emotions (disgust and joy), elicited by bitter-tasting beverages(coffee, yerba mate infusion and grapefruit juice) in two groups with different Body Mass Index(BMI): overweight group (25 < BMI < 30), and healthy-weight control group (18.5 < BMI ≤ 25).Participants (n = 66; 34 females, 32 males) evaluated a total of three consecutive sips of thesame beverage (taking one sip every 20 seconds (s) and registering a continuous video for 60s.The Wilcoxon test (continuous analysis) showed some changes generated as the drinks werebeing consumed. The biggest difference was the expression of disgust for coffee in the high BMIgroup, at the first sip (0-10s). It represented 27% compared to 2% in normal BMI. The continuousanalysis allowed to observe the periods where the differences were greater (0-10 and 40-50s).