Recall of stimuli shown in Fig. 14.

<p>100 individual samples from the model are generated for specific parameters (<i>M</i> = 200, <i>σ_x</i> = 0.25), mixed (left) or hierarchical (right) population codes and inter-stimulus distances Δ<i>x</i> = {0.22, 1} rad. Shaded regions correspond to one standard deviation around the mean over 10 repetitions. <b>Top row</b>: Fitted mixture proportions from a mixture model (with one Von Mises component per target/non-target and a random uniform component, similar to [<a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1004003#pcbi.1004003.ref007" target="_blank">7</a>]). For small Δ<i>x</i>, no amount of conjunctivity can improve the results, indicating intra-receptive field misbinding. For large Δ<i>x</i>, there is a change from non-target to target responses as the proportion of conjunctive units increases. The target is randomly chosen for each trial.. <b>Second row</b>: Width of the Von Mises component of the mixture model (represented as the standard deviation corresponding to the fitted concentration <i>κ</i>). The dotted black line corresponds to the distance Δ<i>x</i> between items in the stimuli pattern.