Study | O’Mahony [35] | Heller [24] | Koch and Koch [28] | Tomasik-Krótki and Strojny [65] | Wan et al. [71] |
---|---|---|---|---|---|
Number of participants | 51 | ≈2,000 | 45 | 519 | 452 |
Origin of participants | USA (CA) | Germany | USA (OR) | 17 countries | 4 countries |
Type of participants | University students | Cross-section of the public | Students | High school and university students | Internet recruits |
Black | (Bitter) | Bitter | (Bitter) | – | Bitter |
Blue | Â | Salty | Â | Salty | Â |
Green | (Bitter) | Sour | Sour | Sour (bitter) | Sour |
Orange | Â | Sweet | Sweet | Sweet | Â |
Pink | – | Sweet | – | – | Sweet |
Red | Sweet | Sweet | Sweet | Sweet | Â |
Violet |  | Bitter |  | Bitter/umami | – |
White | Salty | Salty | Salty | – | Salty |
Yellow | Sour | Sour | Sour | Sour | Â |
Brown |  | Bitter |  | – |  |
Grey |  | Salty | – | – |  |