1. A neuromorphic network for producing spike-timing dependent plasticity, comprising: a plurality of electronic neurons; an interconnect circuit interconnecting the plurality of electronic neurons, the interconnect circuit comprising: a plurality of plural synaptic devices for interconnecting the electronic neurons via axon paths, dendrite paths and membrane paths; wherein each synaptic device comprises a variable state resistor and a transistor device with a gate terminal, a source terminal and a drain terminal, wherein the drain terminal is connected in series with a first terminal of the variable state resistor; wherein the source terminal of the transistor device is connected to an axon path, the gate terminal of the transistor device is connected to a membrane path and a second terminal of the variable state resistor is connected to a dendrite path, such that each synaptic device is coupled between a first axon path and a first dendrite path, and between a first membrane path and said first dendrite path.