Memory fidelity and mixture proportions as a function of the ratio of conjunctive units.

<p>(<b>A</b>) Standard deviation of the Von Mises component (in blue) from the mixture model fitted to samples of the model shown in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1004003#pcbi.1004003.g008" target="_blank">Fig. 8</a> as a function of the fraction of conjunctive units. The (theoretically-calculated) Fisher information is shown in green for the associated population codes. (<b>B</b>) Mixture proportions of the mixture model fitted on the model samples. This metric is less sensitive to random fluctuations of the samples, and shows that if 50% of the units are conjunctive, then 75% of responses will be correctly associated with the appropriate target angle. (<b>C</b>) P-value for a resampling-based estimation of the probability of the non-target mixture proportion to be different than zero. We see that the null hypothesis of the non-target mixture proportion being zero can be rejected from 70% of conjunctive units and less.