document: Noise effect on memory recall in dynamical neural network model of hippocampus We investigate some noise effect on a neural network model proposed by Araki and Aihara -LRB- 1998 -RRB- for the memory recall of dynamical patterns in the hippocampus and the entorhinal cortex ; the noise effect is important since the release of transmitters at synaptic clefts , the operation of gate of ion channels and so on are known as stochastic phenomena . We consider two kinds of noise effect due to a deterministic noise and a stochastic noise . By numerical simulations , we find that reasonable values of noise give better performance on the memory recall of dynamical patterns . Furthermore we investigate the effect of the strength of external inputs on the memory recall
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