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. 2017 Feb 23;8:58. doi: 10.3389/fneur.2017.00058

Figure 5.

Figure 5

Biophysical models of cortical layers include excitatory and inhibitory cells and synapses. In the diagram, pyramidal cells are represented as triangles and basket cells are circles. Arrows represent excitatory connections (which can be AMPA or NMDA receptor mediated) and inhibitory (GABAergic) connections. The equation shows the basic principle on which the network model is constructed: each cell voltage changes in time according to the combined effect of intrinsic (voltage-dependent) currents and synaptic currents.