Connectivity in the thalamocortical network model.

<p>A. The network architecture included three one-dimensional network layers each containing cortical pyramidal neurons and inhibitory interneurons and two thalamic neuronal groups corresponding to the matrix and core systems. Green triangles indicate cortical pyramidal neurons, red circles indicate inhibitory interneurons, blue circles indicate thalamic relay neurons and yellow circles indicate thalamic reticular neurons. Lines ending with arrows indicate excitatory AMPA/NMDA connections while lines ending with bars indicate inhibitory GABAergic connections. B. Schematic connectivity for differences in the spatial extent of thalamocortical and corticothalamic projections for the core and matrix systems.