Figure 2. The ability of tethered flies to discriminate patterns was unaffected by the location of the patterns.

There was little location dependence among the discrimination values. (A) Box plots of discrimination value for color, p = 0.8771. (B) Box plots of discrimination value for COG, p = 0.5929. (C) Box plots of discrimination value for contour orientation, p = 0.4949. Patterns are presented as inserts. The data are shown by box plot; the p values were calculated by the Kruskal-Wallis test; the red crosses represent outliers; the y-axes of the charts are truncated for compactness.