Figure 3.

Psychometric functions for ternary mixtures (filled squares) and single compounds (open diamonds for C₂, open squares for C₄, open triangles for the third mixture component). y axis: log-odds ratio of chance-corrected pcorr and x axis: concentration step (2.2-fold dilutions, where the proportions of the 3 compounds in each mixture remain the same as concentration increases). Lines (solid for mixtures, dashed or dotted for single compounds) represent linear fits (least-squares regression). Error bars omitted for clarity (error bars for these functions appear in Figures 2 and 4).