Robustness to variations in the parameters that control learning rate.

<p>The upper row shows how the proportion of networks that converged varies as function of <i>β</i> (learning rate) and <i>λ</i> (decay of tags); white regions had a proportion of convergence lower than 0.8. The lower row shows the effect of <i>β</i> and <i>λ</i> on the median trial when the learning criterion was reached; white regions reached convergence later than the yellow regions (see insets).