The purpose of the present invention is to provide a neural network structure, and the like, that model the structure of the neural circuits of the human brain. Provided is a neural network structure which includes a plurality of neuron parts and a synapse part which links the plurality of neuron parts, and in which a second neuron part connected to a first neuron part via the synapse part fires in accordance with a sum found by adding, at least one time, the product of the output value of the firing or non-firing of the one neuron part and a weighting factor of the synapse part, wherein the neural network structure is provided with a loop structure in which an output value according to the firing of the one neuron part is propagated to such one neuron part via the second neuron part and the synapse part.
NEURAL NETWORK STRUCTURE, ELECTRONIC CIRCUIT, INFORMATION PROCESSING SYSTEM, METHOD, AND PROGRAM