An Experimental Research on Brain-Computer Interface Based on Steady State Visual Evoked Potential

For acquiring steady state visual evoked potential(SSVEP)applied to brain-computer interface system,a method combining average and FFT is proposed.Input signal are obtained by their frequency figure of SSVEP.Times of average and best color of visual stimulation are confirmed by experiments.A method of acquiring SSVEP with mixed visual stimulation is studied.Experiments showed that SSVEP can reflect the control purposes of users and can be applied to BCI system.