1 ) An electronic neuronal circuit system to model the interaction between the postsynaptic terminal of a first synapse formed between two neurons and the postsynaptic terminal of a second synapse formed between two neurons, comprising: a first comparator to model the first neuron that provides the presynaptic terminal of a first synapse; a second comparator to model the second neuron that provides the presynaptic terminal of a second synapse; a first plurality of diodes connected to the first comparator to model a first synapse at the presynaptic terminal of the synapse between the first neuronal pair; a second plurality of diodes connected to the second comparator to model a second synapse at the presynaptic terminal of the synapse between the second neuronal pair; a first diode, which is the last one of the first plurality of diodes, whose cathode is used to model the postsynaptic terminal of the synapse between the first neuronal pair; a second diode, which is the last one of the second plurality of diodes, whose cathode is used to model the postsynaptic terminal of the synapse between the second neuronal pair.