A New Brain-Computer Interface Paradigm based on Steady-State Visual Evoked Potential of Illusory Pattern Motion Perception*

摘要

Steady-state visual evoked potential (SSVEP) is a commonly implemented method in brain computer interfaces (BCIs). The traditional pattern flip paradigm has the disadvantages of easy to fatigue and high stimulation intensity. In the application of brain-controlled virtual reality(VR) systems, there are many problems such as limited by devices and the paradigm induced effect was not good. In this paper, we propose a new SSVEP-BCI paradigm based on illusory pattern motion perception. Using the basic principle of pattern peripheral drift illusion, the visual motion stimulation effect is alternately presented in double-frame graphics, and the accurate SSVEP induction effect. The brain activate degree is greater and the functional connection is stronger. The experimental results show that the new paradigm adaptability is an effective SSVEP-BCI paradigm, and it is not easy to fatigue. It can be applied to brain-controlled virtual reality system and other human-computer interactive systems.