 The coincidence timing task could either have a virtual or a real interface. For the real interface, a keyboard was used. For the virtual interface, a webcam recorded a marker on the table alongside the keyboard of the computer. The images were fed into the computer and analyzed online. Using the custom-made software, it was determined whether or not the participants hand occluded the marker, which was then fed back to the virtual environment. The coincidence timing task was based on the Bassin Anticipation Timer. To this end, 10 3D-cubes were displayed simultaneously in a vertical column on a monitor. The cubes were turned on i.e., they changed from white to green and off sequentially from top to bottom until the target cube i.e., the tenth cube was reached. The task for the participant was to either press the space bar on the keyboard i.e., tangible button press task, by physical contact, represented on figure 1A and 1B or to make a sideward hand gesture as if hitting the target object i.e., the more abstract gesture task, with no physical contact, represented on the figure 1C and 1D, i.e., occluding the marker at the exact moment the target cube turned green. 