User Interface and its flow diagrams for the SSVEP model. ZhaoJing LiWei LiMengfan 2015 <p>(a) The User Interface for the SSVEP model displays live video in the middle window and flickers four images at four different frequencies on the periphery that represent different humanoid robot behaviors. (b) The flow diagrams describe the User Interface and the Robot Controller for the SSVEP model for an on-line control experiment.</p>