Figure 12.

A schematic of the results obtained by Kubovy & van den Berg [54] using the dimotif lattices described in figure 11, showing that the conjoined effects of proximity and similarity are additive when choice probabilities are represented as log-odds. The line for δ = 0 (light grey) corresponds to the attraction function in figure 10, i.e. all the dots have the same colour, and therefore, grouping by similarity cannot affect the results. The results are equivalent to the multiplicative model of figure 13.