Color congruence for each odor in each culture. Colors per odorant (fruity, flower, candy, woody, hazelnut, musty, rice, soap, vinegar, burnt, vegetable, fish, meat, plastic) per country (Dutch, NL. Res. Chinese, German, Malay, Mal. Chinese, US) are ordered by frequency (most frequent are shown lowest on their respective y-axis). Frequency is represented by the height of each color box; the box on the right of the figure shows the height a given box must be for there to be 10, 9, 8 etc. ratings of that color for a given odorant. Boxes have been given a slight shadow to help with the perception of harder to see light colors. The background bars are only colored to help with reading the figure.
(Levitan, et al., 2014)