The effect of training upon the organisation of the feed-forward synaptic efficacies.

<p>The strength of the synaptic weights are indicated by the colour (red being high and blue being low). Before training (top) the weight matrix is random (unstructured). After training (bottom) there are strong connections from all the inputs representing all transforms of one stimulus to particular output neurons (indicated by horizontal red stripes) and likewise for the input neurons representing transforms of the other stimulus to a different set of output neurons.