Figure 5.

The response of the V4 orientation filters to different oriented stimuli. The four stimuli presented to the network are shown on the left. On the right are the neural responses of the four different orientation populations: right diagonal (RD), horizontal (H), left diagonal (LD), and vertical (V). Each population has 1024 neurons (32 by 32) and the firing rate of each neuron is shown in pseudo-color with blue being no response and red being high response. The corresponding firing rates are given by the color bar to the right of the neural populations. As one can see the strongest activity of each population corresponds to the stimuli corresponding to its preferred orientation.