Subjects performing a discrimination task with visual and tactile stimuli. Thereby attention to time, space and modality will be modulated.
A cue will tell on which side the stimulus will appear and which modality is "primary", which means that more stimuli will appear in this modality. Overall, the primary modality is more likely at one point in time, while stimuli of the other modality will probably appear at another time point.
During the performance of this experiment, an EEG, with localized positions of the electrodes, will be recorded, to analyze their brain oscillations.