Toward FRP-Based Brain-Machine Interfaces—Single-Trial Classification of Fixation-Related Potentials

<p><b>Left:</b> A participant is performing the search task while his eye movements and EEG data are recorded simultaneously. The black box below the screen is the EyeFollower remote eye tracker. <b>Right:</b> Example scanpath of participant 1 who has to find the dart out of 12 objects in trial 48. The circles denote fixations, where the size is proportional to the fixation duration and the numbers represent their chronological order. The lines symbolize saccades. The Figure illustrates that participants apply a grid structure like scanpath to successively check the different objects for a match in the gaze-contingent search task.