A.

B.

C.

Figure 3. Examples of a traveling wave of activity in an array of 250 by 250 neurons. In panels A and B connections for each neuron were randomly chosen from 8 neighbors (3x3 array); in panel C connections were chosen randomly from 24 neighbors (5x5 array). The synaptic weight w for panel A and C is 40 for panel B 100. For all panels g_K(Ca) = 3.5 mS/cm². All other parameters are same as in Figure 2B.