Generated neuronal network activity at the first level after learning.

<p>The solid lines represent the cochleagram dynamics obtained from the stimulus (the word “zero”, the same stimulus as shown in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003219#pcbi-1003219-g001" target="_blank">Figure 1</a>) that the module had to learn. Neuronal activity was normalized to one. The dashed lines represent the neuronal activity generated by the module after learning and shows that the module has successfully learned the proper <i>I</i> vectors between two levels.</p>