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. 2018 Oct 8;596(21):5281–5298. doi: 10.1113/JP276370

Figure 7. Proposed schema of the nBIC/ECIC projections into the mouse SC.

Figure 7

In addition to a direct excitatory projection from the nBIC (green excitatory neuron) to the SGP‐residing neuron (black), a direct inhibitory connection originating in the ECIC (red inhibitory neuron) is also present. Secondly, a feed‐forward inhibitory connection is mediated by an axonal branch of the direct excitation (dotted green synapse) possibly involving an SGP‐residing inhibitory interneuron (dotted inhibitory connection within the SGP). Thirdly, a direct inhibitory synapse (dotted red synapse) onto an SGP‐residing inhibitory interneuron. Dotted synapses are only proposed. Note that the excitatory projection from the ECIC is not shown, and the inhibitory ECIC neuron presumably has more axonal collaterals than shown.