Figure 1.

Model definition. Layers 2/3, 4, 5, and 6 are each represented by an excitatory (triangles) and an inhibitory (circles) population of model neurons. The number of neurons in the population is chosen according to Binzegger et al. (2004) based on the countings of Beaulieu and Colonnier (1983) and Gabbott and Somogyi (1986). Input to the populations is represented by thalamo-cortical input targeting layers 4 and 6 and other external background input to all populations. Excitatory (black) and inhibitory (gray) connections with connection probabilities >0.04 are shown. The model size corresponds to the cortical network under a surface of 1 mm².