Signals similar to EEG can be produced while extrinsic input passes through the model,but empirical values are used to describe the statistical property of extrinsic input without special research on it. In the context of given neuronal population model parameters,SR-UKF is used to estimate the extrinsic input and model output corresponding to different observations. The results show that the mean values of estimated extrinsic inputs are within the interval recommended by previous literatures,but the standa...