Fig. 7.

Geometric mean rated intensity (± S.E.M., Y-axis) of various sensations for a stimulus-matrix of sucrose and 3-mercapto-2-methylpentan-1-ol (3 M; n = 12). In some conditions subjects rated just the five basic tastes each trial, whereas in other conditions subjects rated the intensity of “onion aroma.” An asterisk (*) indicates ratings significantly different from the corresponding 0 ppb 3 M condition according to a 2-tailed Dunnet test (based on one-way ANOVAs reported in Table 2)